RSS - Concrete | Diamond | core drill bit https://core-drill-bit.com/rss/?category=10-inch-core-drill-bits/ RSS - concrete drilling core drill bits. core drilling services. core drilling costs, prices, projects, and sales. sizes 1 inch to 14 inches. Home services en-us Tue, 19 Mar 2024 03:30:53 EDT <![CDATA[Products - Charlotte Concrete Cutting Solutions!?!?!]]> https://core-drill-bit.com/concrete-cutting-service/concrete-sawing-service/charlotte-concrete-cutting-solutions-394.html https://core-drill-bit.com/concrete-cutting-service/concrete-sawing-service/charlotte-concrete-cutting-solutions-394.html Cutting a C-Shaped Hole: Redefining Spaces

At RT Cutting, we're not just cutting concrete; we're reshaping possibilities. Our latest project involved carving a distinctive C-shaped hole, transforming a mundane wall into a gateway of innovation.

Here's the scoop:

  • The Vision: Our customer had a bold idea: to relocate their toilet to the other side of a newly constructed wall. We embraced the challenge and visualized a C-shaped cut, breathing life into their vision.
  • The Cut: The C-shaped hole spanned approximately 4 feet on the longer side and 3 feet on the shorter side. Precision was our mantra as we meticulously sculpted the contours, ensuring a seamless fit for the toilet's new home.

Concrete cutting isn't just about making incisions; it's about orchestrating transformations. From envisioning the design to executing the cut, every step is a testament to our commitment to excellence.

Stay tuned for more concrete adventures from RT Cutting. Because when it comes to redefining spaces, the possibilities are endless.

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concrete-sawing-service Thu, 08 Feb 2024 17:12:45 EST
<![CDATA[Services - Greensboro NC concrete cutting]]> https://core-drill-bit.com/concrete-cutting-service/concrete-sawing-service/greensboro-nc-concrete-cutting-391.html https://core-drill-bit.com/concrete-cutting-service/concrete-sawing-service/greensboro-nc-concrete-cutting-391.html

The Art and Science of Concrete Cutting

Concrete cutting is more than just slicing through a slab; it's a delicate dance of precision and expertise. Let's dive into the world of concrete cutting and why it's crucial to bring in the professionals:

  • Precision Matters: Whether it's creating doorways, openings, or intricate designs, precision is key. Professionals use advanced tools and techniques to ensure exact cuts without compromising the structural integrity of the concrete.
  • The Right Tools for the Job: Concrete cutting isn't a one-size-fits-all task. Professionals are equipped with a variety of tools, including diamond saws and drills, designed for different applications and concrete compositions.
  • Safety First: Safety is non-negotiable. From wearing protective gear to using wet cutting methods that minimize dust, professionals prioritize the well-being of everyone on-site.
  • Environmental Consciousness: Wet cutting not only reduces dust but also has environmental benefits. It keeps the air clean and ensures that the surrounding area isn't blanketed in concrete residue.

Thinking about a DIY concrete cutting project? Think again. Concrete cutting requires a blend of artistry and scientific know-how that comes with years of experience. Hiring professionals guarantees a job well done without the headaches.

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concrete-sawing-service Fri, 08 Dec 2023 20:09:49 EST
<![CDATA[Services - Concrete cutting a Doorway in Raleigh North Carolina]]> https://core-drill-bit.com/concrete-cutting-service/concrete-sawing-service/concrete-cutting-a-doorway-in-raleigh-north-carolina-390.html https://core-drill-bit.com/concrete-cutting-service/concrete-sawing-service/concrete-cutting-a-doorway-in-raleigh-north-carolina-390.html Revamping Five Points: A Concrete Transformation

Guess who's back at Five Points in Raleigh, NC? Yep, it's us, bringing some serious concrete magic to the scene!

This time, we tackled the challenge of creating a stylish doorway through a 10-inch thick concrete wall with rebellious 1/2-inch rebar. We don't just cut; we sculpted an opening that's 82 inches tall, complete with a lintel for that extra touch of architectural flair. And of course, we kept it trendy with a 32-inch width because doors should make a statement, right?

  • Precision Cuts: Our blades danced through the concrete like a well-practiced routine.
  • Savvy Cleanup: Thanks to a customer-provided dump trailer, we did the cleanup hustle efficiently. You know, leaving no mess behind!

Concrete cutting projects can get wild, and we get it! It's like a concrete party with a touch of controlled chaos. But hey, we believe in leaving your space as chic as possible.

Pro Tip: When planning your concrete bash, having on-site disposal (like a dump trailer) is the VIP pass to a hassle-free cleanup. Trust us, you'll be the talk of the town!

Stay fabulous, Five Points! Until next time!

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concrete-sawing-service Wed, 08 Nov 2023 22:09:56 EST
<![CDATA[Services - Concrete cutting service Charlotte NC]]> https://core-drill-bit.com/concrete-cutting-service/concrete-sawing-service/concrete-cutting-service-charlotte-nc-389.html https://core-drill-bit.com/concrete-cutting-service/concrete-sawing-service/concrete-cutting-service-charlotte-nc-389.html

Concrete Cutting for Remodel in Northcrest Shopping Center

We recently completed a concrete cutting project in a shopping center in Charlotte, North Carolina, as part of an ongoing remodeling effort. The project involved precision concrete cutting to accommodate the installation of new plumbing fixtures and floors.

Here are the details of the job:

  • We cut out a 32x32 square and removed the concrete to allow the installation of new pipes for a toilet. The work was performed flush against the wall, ensuring a seamless transition for the customer.
  • In the mop sink area, we created a 30x30 square cutout for the installation of a new mop sink drain and floor. The customer requested precise cuts against each of the walls to fit their new floor and drain, even within the constraints of a confined space.

One of the critical aspects of our work is maintaining cleanliness. Our wet cutting method not only minimizes dust but also offers several advantages, including:

  • Reduced airborne dust, which is beneficial for the health and safety of all involved.
  • Precision cuts with minimal damage to surrounding structures.
  • Increased cooling, extending the life of the cutting tools.

Additionally, when on-site disposal is needed, we aim to provide comprehensive solutions. In this case, the shopping center had a convenient disposal area with a ramp, making the process efficient and hassle-free for our valued customers.

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concrete-sawing-service Mon, 23 Oct 2023 17:26:28 EDT
<![CDATA[Services - core drilling service for Greensboro North Carolina]]> https://core-drill-bit.com/core-drilling-service/blog/core-drilling-service-for-greensboro-north-carolina-388.html https://core-drill-bit.com/core-drilling-service/blog/core-drilling-service-for-greensboro-north-carolina-388.html

Core drill operators in Greensboro North Carolina

Part of the Carolina Precision Core Drilling family of core drilling companies located in the heart of the Tarheel state. Three service trucks to cover towns between the Virginia state line to the South Carolina border. We have cored many types of penetrations in all styles of buildings, slabs and walls.

Call 704-245-0119

From core barrel sizes of on-half inch to 14-inches in diameter, and as deep as 36 inches most cases. Recently we have drilled at the new Guildford county Childrens musuem, the federal court house and the Comfort Suites on Spingfield st.

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blog Mon, 02 Oct 2023 12:14:38 EDT
<![CDATA[Services - Concrete cutting in Raleigh, NC]]> https://core-drill-bit.com/concrete-cutting-service/concrete-sawing-service/concrete-cutting-in-raleigh-nc-387.html https://core-drill-bit.com/concrete-cutting-service/concrete-sawing-service/concrete-cutting-in-raleigh-nc-387.html Concrete Cutting Project in Raleigh, NC

We recently completed a concrete cutting project in the Five Points area of Raleigh, North Carolina. The project required precision concrete cutting work.

Here are the details of the job:

  • Drilled two holes in 12-inch concrete walls, one measuring 9 inches in diameter and the other 4 inches in diameter.
  • Creating a specialized floor opening, featuring a 12-inch by 12-inch square with an attached 4-inch wide channel extending to the wall. This channel was designed to accommodate the customer's equipment.

Our team's expertise in concrete cutting ensures that projects are completed on time. We are proud to serve Raleigh's vibrant Five Points neighborhood with our specialized services.

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concrete-sawing-service Sun, 01 Oct 2023 22:27:54 EDT
<![CDATA[Services - Charlotte Concrete Brick Block and Slab cutting.]]> https://core-drill-bit.com/concrete-cutting-service/concrete-sawing-service/charlotte-concrete-brick-block-and-slab-cutting-386.html https://core-drill-bit.com/concrete-cutting-service/concrete-sawing-service/charlotte-concrete-brick-block-and-slab-cutting-386.html Are you at a job site facing concrete, brick, block, or slab obstacles that need expert cutting and adjustments? Look no further!

RT Cutting specializes in:

  • Concrete Cutting: From slabs to walls, our precision concrete cutting services are designed to meet your project's unique needs. We create clean, precise openings, doorways, and windows in concrete structures.
  • Block Cutting: Whether it's cinder blocks or concrete blocks, we have the expertise and state-of-the-art equipment to cut and shape blocks for your construction and renovation projects.
  • Slab Cutting: Planning floor modifications or extensions? Count on us for expert slab cutting services that guarantee precise results.
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concrete-sawing-service Sun, 24 Sep 2023 16:45:50 EDT
<![CDATA[Services - core drilling company south hill virginia]]> https://core-drill-bit.com/core-drilling-service/blog/core-drilling-company-south-hill-virginia-382.html https://core-drill-bit.com/core-drilling-service/blog/core-drilling-company-south-hill-virginia-382.html

Core drilling services for southern Virginia

Reasonable prices concrete core drilling for South Hill, Lake Gaston and of course Petersburg, Virginia.

Professional Core drillers with 35 years experience core drilling reinforced concrete walls and floors.

Specializing in boring holes in reinforced block walls, solid concrete walls, foundations, concrete sidewalks and, concrete floors from diameters of 1 to 14 inches with depths of up to 36 inches. Many projects are for commercial services where a penetration or opening is needed to pass through a water pipe, electrical conduit or wires, HVAC air ducts as examples.

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blog Tue, 14 Mar 2023 21:44:55 EDT
<![CDATA[Services - get paid to be a core drilling affiliate]]> https://core-drill-bit.com/core-drilling-service/blog/get-paid-to-be-a-core-drilling-affiliate-381.html https://core-drill-bit.com/core-drilling-service/blog/get-paid-to-be-a-core-drilling-affiliate-381.html

Make $25 dollars for signing up to core-drill-bit.com

Free money to advertise your concrete core drilling business.

We offer core drillers and other concrete drilling advertisers a listing of their site on our search engine. Choose our premium plan by signing up and directly add keywords related to your site, and receive visitors at a cost-per-click basis for as low as $.01 per click. Using our keyword tool you will be competing with others who also are targeting that particular word or phrase for their website. This commonly called Pay Per Click advertising. Our service is much more cost effective than other advertising methods because our service is highly targeted. Instead of having your Website show up randomly on different sites and hoping people will click your link, surfers visit our site looking for specific content using keywords that relate to your website or business, just like any other search engine. This method of advertising is one of the most effective methods of increasing your sales conversion rate (i.e. number of visitors VS. number of sales). core-drill-bit.com lets your advertising dollar go much further and more accurately than traditional means.

What other incentives do we offer?

A free blogging site. You always can add more money to your keyword account to keep up the dominance you have achieved at the top.

But if telling stories about your concrete core drilling products or services is more your thing then we make it easy.

Your posts are searchable on our site for FREE!

Yep Free

Free. How bout that?

Take some jobsite pictures and post them with a great story attached.

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Maybe your a code monkey!

Copy-and-paste a few lines of code in order to add a core-drill-bit-com search box to your website. You will receive 25% per click on any of the paid search results that your referrals click.

How much does it cost and how many visitors will I receive?

Signing up is free and your new account will be credited $25 to start bidding on keywords. You must bid at least $.01 for each keyword you list. Traffic to your site from core-drill-bit-com may depend on many factors. For example, the more targeted your keywords are, the higher the quality of traffic to you website. Which means a higher sales rate for whatever you may be selling.

How does your ranking system work?

All PPC ranking is based on advertiser bids.For example:Lets say you bid on the keyword phrase core drill bit for one penny ($.01). When a core-drill-bit-com visitor searches for "core drill bit" your website would come up at the very top in the search results. Then if someone else were to bid more that one penny for the keyword phrase "online casino" then your site would be listed just one position below the person who out bid you for that keyword. So, the highest bidder for a specific keyword will always receive the highest ranking for that specific keyword, and lower bidders listings will appear under the highest bidder in descending order of their bid amount.

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blog Sat, 11 Mar 2023 12:39:38 EST
<![CDATA[Services - core drilling in charlotte nc]]> https://core-drill-bit.com/core-drilling-service/blog/core-drilling-in-charlotte-nc-380.html https://core-drill-bit.com/core-drilling-service/blog/core-drilling-in-charlotte-nc-380.html

Professional core drilling company. Charlotte. NC

You haven't found another site that just wants to list an array of useless information about core drilling in Charlotte NC to get website visitors. You want a core drilling company that can core drill holes in reinforced concrete walls and floors for any type of hole you need core drilled.


We are the core drilling company that your looking for!


We specialize exclusively in core drilling reinforced concrete walls and floors in Charlotte, NC. We offer core drilling sizes from 1-inch to 14-inches in hole diameter and depths from 6-inches to 36-inches in depth or thickness. We service the areas of central North Carolina. Including the grand Queen City of Charlotte.

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blog Thu, 27 Oct 2022 20:42:18 EDT
<![CDATA[Services - Core drilling 5-inch holes for artwork]]> https://core-drill-bit.com/sizes/5-inch/core-drilling-5-inch-holes-for-artwork-379.html https://core-drill-bit.com/sizes/5-inch/core-drilling-5-inch-holes-for-artwork-379.html

New artwork at 631 Cross Trail Dr. Greenway.

Today we got to do some crossover work and show our creative side as we core drilled some 5-inch holes in concrete so that a new flamboyant and stylish swing that has been installed at 631 Jackson St. in Charlotte, NC. Not that we are not already artists in our own right. This particular project made us proud to be able to work with different people who take the time to appreciate the crafter side of life in their work.


This has become one of our most popular photos.

v

It was pleasure to core drill this project. The passingbyers has plenty of good cheer to spread with the wonderful park addition to their local nature trail near downtown Charlotte, NC.

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5-inch Wed, 16 Mar 2022 19:13:09 EDT
<![CDATA[Services - core drilling over 500 two inch holes in a concrete floor]]> https://core-drill-bit.com/sizes/2-inch/core-drilling-over-500-two-inch-holes-in-a-concrete-floor-378.html https://core-drill-bit.com/sizes/2-inch/core-drilling-over-500-two-inch-holes-in-a-concrete-floor-378.html

Speed is the key to completing a large core drilling project.

keeping

the core drill bit sharp and cutting at top efficiency is an enormous responsibility of any core drill operator who has the goal of cutting as many holes in a workday as possible when the opportunity presents itself. One of the things about core drilling holes in concrete for a living is that usually, you are not on any 1 job site for very long. A well-outfitted core drilling truck and crew can accomplish miracles for contractors in getting work done quickly if there are 40 holes to be done or less. So when the chance comes along to act like regular workers, by which I mean to the work at the same place, use the same tools and park in the same spot for more than a week then it is a special time indeed. I like to test our mettle and see at what extremes we can get a job, no matter the size, completed. So when a core drilling job came over the wire with over 500 two-inch holes in a concrete floor to be done. I had to jump on it.

Time spent between holes is cruicial

the average time to core drill a 2-inch hole into a reinforced concrete floor can vary depending on the material that is being core drilled, of course, the depth, mounting, and other considerations while putting holes in a concrete floor. Our average time on this job was 97 seconds between the start of one core drill hole and the next. That of course 2 core drilling machines running at top speed and moving as fast as one can while safely performing the work. But alas we only kept up this pace for a short period as there were other considerations such as limited power and water supply. Can every core drilling company core drill this fast. Most likely if they wanted to, they could. well maybe, or maybe not. But we can. But in truth that is showing off. Something we like to call job site performance.

Every job site is different in construction. One of many things we need to operate the machines is water. Water cools the core drill bit and produces slurry, which is a byproduct of the core drilling process. Sometimes there is water on the site, while more often than not water can not be found for more than 500 yards away from where we need it. This was the case on this job so to solve the problem we bought a 275-gallon water tank (fig-b) from a local water tank dealer ( yes, there is such a thing. thank goodness he lives nearby), that had the unique feature of being able to be forklifted to and fro to where it was needed on the job site to provide water for the core drilling. Adding a three-quarter house power water pump and two 100 foot lengths of water hoses and we had water for both machines to operate.

Extracting anchors byway of core drilling

So why was this work being done? Why core drill over 500 holes into a concrete floor. To extract half-inch by 5-inch long concrete sleeve anchors that had used to hold an older style packaging rack system in place for a shipping company near Kannapolis, NC. The racks were being replaced with a new robotic automatic racking system that would speed up the production of getting products out to the trucks that are delivering products to the stores and our happy homes. After the holes were drilled each day we refilled them with anchoring cement like we use to mud-in handrails on our railing projects. Essentially we were taking out the bolts and filling the hole back in. Speaking of being in the Army. Just one of the many ways core drilling is used to accomplish objectives in this world that you might not have thought of. So is the life of a core drill operator.

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2-inch Mon, 07 Feb 2022 16:55:50 EST
<![CDATA[Services - coring 6-inch holes for dryer vents]]> https://core-drill-bit.com/sizes/6-inch/coring-6-inch-holes-for-dryer-vents-377.html https://core-drill-bit.com/sizes/6-inch/coring-6-inch-holes-for-dryer-vents-377.html

December 2021 Core drilling projects in North Carolina

Core drilling through concrete walls and floors

It seems to be a windy fall this last half of November into December of this miserable year. Pandemics, scam-a-demics, terror-a-demics, they are all amuck as Christmas rolls upon us this blessed year.

Luckily we are too busy core drilling to take part in any of that as two jobs this early winter has us coring 6-inch holes for dryer vents into some places that dryer vents don't normally go.

In fig-1, and fig-3 is shown the holes after they were cored both from the top and from the side to effectively make a ninety-degree corner that a plumber could fit some 3-inch PVC pipes into so that he could make an exhaust for a dryer vent. Unlike most dryer exhausts these were made to go out of the building through the foundation. As you can see there was quite a bit of water that was used to cool the core drill bit as it cut the concrete. These types of core drilling jobs are not like what you find during a course at your local tech school of construction. These foundation walls were uneven, low to the ground and already filled with water when we arrived. But we had been in tough situations before and with a few wooden wedges, a level, and some clever hammer drilling to anchor the core drill rig to the wall we soon had the holes drilled.

Coring concrete foundations

fig-2 is a picture of a small job on Fairview Rd, Charlotte, NC, right before you cross Park Rd when going past the South Park Mall on Sharon Rd. This is another 6-inch core drill hole for where another plumber needed to make a connection from the new home being built to the city's main sewer lines. As you can see it is full of water like a lot of foundation core drilling is. Again we did not have time to take a picture until after we had finished the job but we got one nonetheless. Fig-4 is a look at our new core drilling Ford f-350, magnum V-8 work truck that we have outfitted especially to take care of the toughest core drilling projects in North Carolina. Over 9000 starting watts, 50 gallons of water, 50 core drill bits, 3 core drill motors, and 3 rigs and core drilling stands, this truck is packed to hunt the bear of concrete walls or floors. Quickly accomplishing any core drilling need a customer may have. Retractable water hoses and electric reels make setup and teardown a breeze with any task that is within 100 ln. ft of this beast. With the ability to pump water as high as 40 ft vertically and 180 ft on grade. But back to our subject most core drilling for dryer vents is a minimum of 4 and a half inches to let a 4-inch piece metal dryer vent pass through a wall with just enough room left to apply water sealant around the outside to set it in place. It was because the plumber needed to have the pipe turn at a sharp 90 that the holes were drilled at 6-inches. This allowed two 3-inch pieces of PVC pipe to be joined with a 90-degree elbow inside the hole where the horizontal and the vertical cores met. A technic used by many commercial trades to make junctions inside walls and floors to make pipe go a different way when obstacles appear.

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6-inch Mon, 20 Dec 2021 20:17:58 EST
<![CDATA[Services - core drilling for restaurant tables and chairs]]> https://core-drill-bit.com/sizes/4-inch/core-drilling-for-restaurant-tables-and-chairs-315.html https://core-drill-bit.com/sizes/4-inch/core-drilling-for-restaurant-tables-and-chairs-315.html

making 4-inch holes in concrete for restaurants

Ever wonder how the tables and chairs that look like they are planted in the concrete or tile found at many restaurants get to appear that way? Core drilling is many times a preferred method for installing such things. At some point, a designer or owner decided on a plan to make the business, or in some cases, even homes, have embedded tables and chairs as a way of seating for the dining or entertainment area. This is even more popular with swimming pools and swim-up bars and tiki's that some like to have.

Here in North Carolina we have core drilled holes for restaurants tables and chairs for years. A recent trend we would like to note is the before the great pandemic most of these types of core drilling projects took place indoors, usually through commercial-grade floor tile or carpet, down into the concrete sub-floor below. Now coming to the second winter of the pandemic most of these types of projects are taking place outdoors. We assume to limit the number of people inside the building.

Pretty blue core holes

the pictures are from two different jobs near the Raleigh area, one in Cary the other in Apex, NC. The second picture, though a bit sun bright, shows the concrete pad where the coring took place. The BlueFlag color blue dots are the core drill holes before we took a 3-pound hammer and a chisel and popped the cores so they would break and come out the holes. As you can see the pattern right now doe not make much sense. But once the table is installed and the chairs are put in place then it all comes together to make the dining areas that we have gotten used to in these modern ages. Years ago our providing contractor had asked that we core all the way through the subfloor and hit the dirt below, or in most cases in North Carolina, clay or sand. Recently the requests are to stop just short of busting through to the bottom so that it makes pouring the liquid pourable anchoring cement into the holes not seep out through the bottom into the mud and make pouring the dining furniture a long endeavor. Of course, this is an ole handrail installer's trick to save on wasting anchoring cement into porous holes,..yea we suggested it.

Commericial Restaurants often use core drilling.

Of the number of projects we do that Commercial restaurants make up about 10 percent of the work we perform each year. Other types of uses that a restauranteur might find a need for a core drilled hole are floor drains, electrical floor boxes, barriers, and bollards.

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4-inch Sun, 29 Aug 2021 12:51:46 EDT
<![CDATA[Services - various core drilling anchoring methods and how they differ]]> https://core-drill-bit.com/core-drilling-service/blog/various-core-drilling-anchoring-methods-and-how-they-differ-314.html https://core-drill-bit.com/core-drilling-service/blog/various-core-drilling-anchoring-methods-and-how-they-differ-314.html

What type of concrete anchor to use?

Every once in a while on a construction site here in North Carolina we come across some other persons that also operator core drilling machinery and like all people, we are nosey so we stick around to catch a glimpse of how other core drillers use various core drilling anchoring methods and how they differ from our own when performing the same type of work. We have witnessed just about every type of machine that will run a wet or dry core drill bit to our amazement. this includes the standard stand up rig, wall-mounted rigs, stair mounted rigs, directional rigs that core at almost any angle, and the handy but efficient 4 1/2" grinder that a fellow was using one day that I swore could almost knock out 3-inch core drill holes in a 3rd story concrete floor as fast as we could with a stand-up rig.

Without trying to argue with anyone we would ask why they used drop-in anchors instead of wedge anchors when mounting the base of the coring unit to the wall or floor. The most common reply was because that was what was supplied by the contracting company that employed them. Having met over 300 people in our line of work we don't mind sharing what we believe to be the best and safest way to make a small or large hole in the concrete.

Wedge anchor vs Drop-in anchor

In our opinion the pros of using wedge anchors over drop-in anchors is obvious. A 7-inch by 1/2 inch wedge anchor as pictured is driven into the concrete at least 4-inches. A drop-in anchor, which is not pictured because the boss man does not allow them in the shop or work truck, by comparison, is driven into the concrete by less than 1 1/2" and sometimes less. With a wedge anchor even if the hole to be penetrated is more than head high on a wall and you have to use a ladder, you can still manage to hang the base onto the anchor and then secure the mounting screw and tighten down the rig in place onto the wall. With a drop-in, well your guess is as good as ours. Our advice is to use caution and common sense with any concrete anchoring system that is holding your 140 pounds plus rig to a spot high on any concrete wall.

Tapcons. masonry screws, sleeve anchors

These three types are the other most common concrete anchors that our company uses.

Tapcons or masonry screws utilized correctly can be a great way to hold down your rig while drilling floors, tops of retaining walls, and other vertical holes. Which is a ten-dollar way of saying floors or downward drilling. Great for holding things down, but not up, so Never used masonry screw to attach a rig to a wall.

Sleeve anchors are made to hold things in not-so-solid walls such as cement block and brick. Though a single wedge anchor might do the trick when coring a solid concrete wall, it is our advice that when coring a brick or block wall to use more than one sleeve anchor to hold the weight of the rig, motor and bit along with the additional weight of the water hose and electrical setup for the control panel. If possible use a larger 4 to 6 inch by 1/2 inch size anchor in the middle slot and a smaller 3-inch by 3/8 inch or, maybe 1/2 inch by 4-inch if you are able to do so where the leveling hole bolts are typically found.

Vacuum pumps and Roof jacks

Most modern core drilling rigs come with a funny-looking screw top on the tip of the mast that can be confusing. It usually has a metal point to it and you may wonder what on earth it is for. It is for using a 4 x 4 piece of lumber to act as a clamp between solid concrete floors on multi-story buildings. You place the core drill where the hole needs to go, measure just a bit short of how tall the concrete ceiling above is, cut your 4 x 4 lumber and stick it on top of the point part of the jack and begin screw clockwise to tighten the core drill rig down to the floor you are standing on.

Vacuum pumps use rubber seals around the base and a vacuum module that suck the rig down to the concrete and probably the most common method of anchoring a core drill rig to most concrete floors.

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blog Mon, 12 Jul 2021 21:17:08 EDT
<![CDATA[Services - core drilling services fayetteville nc]]> https://core-drill-bit.com/sizes/3-inch/core-drilling-services-fayetteville-nc-313.html https://core-drill-bit.com/sizes/3-inch/core-drilling-services-fayetteville-nc-313.html

Core drilling for new infrastructure

Recently the number of core drill holes we have been drilling has been for upgrading of 5g fiber service for individual buildings. There is not much difference in the holes for any other type of utility service except because the data lines that are being installed themselves are usually small, meaning that typical 3-inch penetration will accommodate more than an entire buildings' worth of data lines.

Updating the Fayetteville NC Veterans hospital

While we provide professional core drilling services Fayetteville NC. When we are able to be part of something as important as helping armed force veterans we are proud to be of service. The VA hospital on Ramsey St. in Fayetteville is a particular older building. Made of brick and mortar on the outside facade. The interior floors where we core drilled happens to consist of precast concrete planks that are barely 4 inches thick. You can imagine that it did not take long to drill each hole. The real challenge was the difficulty of keeping dust and water under control so as not to contaminate the air filtration system that is so important to patients with respiratory ailments. Of course, we have had plenty of practice at not making a mess while we are performing our task of boring perfectly round holes into precast floors. But still, it's not what you have done before but what you are doing now that dictates the moment.

This not the first hospital we have core drilled. Having already performed the same type of service for the Concord, Salisbury, and some of the Charlotte area hospitals we were familiar with the protocol. In this time of world pandemic, we naturally had to be masked, but more than that we had to be perfect and not drop even a drop of water or rock down onto the room below which in many cases were occupied by patients of the facility.

Not a rock dropped.

The natural way of things is that when core drilling concrete on a second story floor that the rock drops to the floor below. Luckily we have several methods of catching the rock in case gravity does win out over our countermeasures.

Rock catching methods

Plan A: Centrifugal force often keeps the core in the bit

Plan B: Slowly decrease water so that at the time the hole is at 100 percent penetration the dry dust helps to hold the core in the bit

Plan C: A metal pan positioned on the floor below to catch the rocks

These are the simplest and most common methods used to catch rocks when core drilling.

Core drilling the Cumberland county landfill

Additional Core drilling projects we have recently done in Fayetteville this year is coring twelve-inch holes in water drain basins at the Cumberland county landfill for new sewer and wastewater runoff at the landfill. The Fayetteville landfill is located on Ann St, Fayetteville, NC.

Coring drilling on Bragg Blvd, Fayetteville, NC

Another recent project is 4-inch core drill holes for homeowners right off of Bragg Blvd. The local plumber was remodeling a bathroom and need core drill holes size 4-inch for new shower drains.

Core drilling the Durham VA hospital

turns out a few months later we core drilled some 3-inch holes in the foundation of the Durham Veterans Administration Hospital in Durham, North Carolina. These particular penetrations were for new natural gas piping to be installed into the hospital. Often we are called upon to perform core drilling for the utility companies such as the local power company, internet providers that are running new data cabling to the hubs that power the internet. This, of course, is now September 2021, and when on hospital grounds these days you must practice social distancing to be safe, so everyone on our crew masked up and drilled safely.

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3-inch Fri, 18 Jun 2021 15:04:57 EDT
<![CDATA[Services - hammer drilling a hole in a brick structure]]> https://core-drill-bit.com/sizes/10-inch/hammer-drilling-a-hole-in-a-brick-structure-310.html https://core-drill-bit.com/sizes/10-inch/hammer-drilling-a-hole-in-a-brick-structure-310.html

The core drilling job in South Carolina.

Recently we were called to do a core drilling job in Bennettsville, South Carolina for a local artificial turf contractor that has been a customer of ours for more than 8 years. The order for core drill holes was as this. The Customer needs 3 10-inch holes for an eight-inch schedule forty PVC drainage pipe. He also needs 1 fourteen inch hole for a 12-inch drainage pipe. Both of these sizes of pipe would be depositing their waste load into some brick drainage water basins that had been installed in the Marlboro High School football field since it was built back in the latter part of the 20th century.

It turns out that after arrival and some inspection that the brick water basins were too decrypted to attach our trusty rig to the side of the basin with any type of concrete or masonry anchors that would hold it on the basin wall while the drilling was being done.

The decision to chip the hole out with a hammer drill.

Not all core drill operators core drill all-day, or everyday on any given job. Many times the hole that is needed is located in less than desirable core drilling places and not always can one accomplish the mission at hand with by core drilling. Sometimes you have to get your hammer drill out and do some chipping. Especially if the brick that you are about to try to penetrate is old, terribly falling apart, or high on the wall and tough to reach with a core drilling rig just won't go.

So how do you go about hammer drilling a hole in a brick structure?

List of tools you may need

  1. Rotary SDS style hammer drill that hammer drilling and chips
  2. A good SDS 1/2 inch or smaller diameter hammer drill bit.
  3. A good heavy duty hammer
  4. A steel-concrete chisel
  5. Maybe a tape measure
  6. brush, Rag or shop vac for the dust
  7. A pair of good gloves that can take digging in brick

You start by making a pattern

of the size of opening that you want to make in the brick structure. Any type of pattern is acceptable but if you have to fill in around the material that is going to be inserted into the hole then you might not want to make it larger than is needed.

Then take your SDS masonry drill bit and drill around the pattern you make every 1/2" to 1". Drill the holes all the way through and as straight as you can so that your hole will be better formed and it won't look like this is the first hole that you have chipped out of a brick wall.

Make as many holes as you can where the holes in needed. Larger holes and patterns call for more holes to be drilled so the brick will chip or knock out more easily.

Once you are happy with how many holes that you have drilled into the brick then switch your hammer drill to chipping mode and start chipping. On occasion, you may have to take your heavy hammer and give the spot a few good whacks to loosen up the brick so it will fall out more readily. When chipping out brick it it never going to be the prettiest hole in the world so if the hole is to covered up then don't worry about it.

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10-inch Thu, 03 Jun 2021 20:08:33 EDT
<![CDATA[Products - how to make a hole through a block wall]]> https://core-drill-bit.com/sizes/3-inch/how-to-make-a-hole-through-a-block-wall-290.html https://core-drill-bit.com/sizes/3-inch/how-to-make-a-hole-through-a-block-wall-290.html

Do I need to use a core drill or hammer drill?

How to install a pipe through a block wall? Contractors, tradesmen, and homeowners have used many methods to run pipe through concrete block walls since building with precast cement products began back in the early 1900s. This according to Ball State University and a thesis paper I found online on their site about the history of the cement block. Sometimes, but not always, to get the best results required one may be required to core drill.

But if the cost is a consideration, or the hole is in a place that can not be seen such as above ceiling level or below grade, and if indeed the cement block wall is hollow you may consider other methods.

Hammer drilling

One such method for holes 5-inches in size and under is to take a hammer drill with a masonry bit drill and make an outline of the size hole you are trying to make where you think the hollow cell of the block is located and drill small holes all the way around the outline as close as you can make them while at the same time making sure to drill straight and level all the way through the wall. We call this perforating the wall. When the outline drilling is completed you should be able to take a hammer and knock out the center, leaving a hole to pass your pipe through. Do not be disappointed if it does not come out perfect, or if a bit of chipping or tapping with the hammer is needed to knock out all the debris.

Almost Core Drilling

Another method that is similar to dry core drilling is to use one of the newly carbide-tipped hole saws that have come out on the market at the beginning of 2019. Often in sizes of 1" to 6" at your local Lowes, Home Depot, or hardware store. With these type bits your don't hammer drill but use the drilling mode of your drill and cut relatively quick through a hollow block wall

Core Drilling

But if cement block is reinforced with 5000 psi. concrete and filled with rebar, and you need a professional-looking hole then core drilling may be the answer. Core drilling bits are engineered with embedded diamonds that allow the bit to cut both metal and concrete. Core drill rigs and motors and all the accessories that are needed to go with them are expensive tools and not something that the average person will want to invest in, but they can be rented from many places.

Setting up a core drill is where the magic happens. Most core drills are heavy and must be anchored to the wall being drilled. If the wall you are drilling is poured and reinforced with rebar you can use wedge anchors to mount the rig. If the wall is hollow then the best anchors to use are sleeve anchors, and do not be afraid to use more than one, a core drill rig coming off the wall while you are drilling is not something anyone wants to have happened. You will also need water and a way to pump and connect to the water inlet to keep the diamond-tipped core bit cool during the core drilling process. When finally set up. Start the drill. Do not force the core drill; just apply steady downward pressure on the feed handle, letting the bit do the work. Diamonds are indestructible, but the diamond teeth can break away from the metal barrel they are mounted on so be aware. Apply even pressure throughout the drilling process. Never force down when cutting rebar, which usually produces black or metallic-looking slurry instead of the milky white slurry when cutting concrete.

When running any pipe through a core drill hole make sure to select a core drill bit one size larger than the pipe being installed, especially if your pipe has to be sleeved. Which is one pipe inside another pipe. A hole larger than the outside diameter of the pipe will give you a little wiggle room in case the hole does not line up perfectly with where the pipe has to go. Once you have the pipe installed, you will want to seal up space around the pipe. If the holes were drilled through interior CMU block walls, you might need to use an expanding foam, but if the holes were drilled through an exterior wall, or needs a sleeve, use a masonry water seal mix found at most hardware stores to patch the hole and seal out moisture and humidity. The foam is even tough enough to keep out household pests.

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3-inch Fri, 07 May 2021 13:31:20 EDT
<![CDATA[Services - Twelve inch holes for bollards]]> https://core-drill-bit.com/sizes/12-inch/twelve-inch-holes-for-bollards-289.html https://core-drill-bit.com/sizes/12-inch/twelve-inch-holes-for-bollards-289.html

Core drilling 12" holes in asphalt in Charlotte, NC.

Every once in a while we get asked to do some misc. ironwork. This type of work has gone hand in hand with our normal job of core drilling as sometimes the products and or services are closely related. Often handrails, bollards, bike racks, and other misc. metalwork requires that core drilling is involved.

Since our first major project back in 1999. Which was the majority of the installation of all the misc. metal throughout the Concord Mills Mall located in Concord, North Carolina. We have developed many techniques for installing ornamental ironwork of some type which of course core drilling and installing 6-inch metal schedule 40 bollards. Over the years we have drilled 10-inch, 8-inch holes for bollards but eventually, we found that Twelve-inch holes for bollards work best, maybe even 14-inch when the bollards are to be set in asphalt. The larger core drill hole sizes allow more concrete to be poured around the six-inch steel pipe so it is harder to knock over.

Once we cored through the asphalt there was gravel and mud, which meant it was time to get out the post holes diggers and breaker bar so that we could make the hole 24-inches deep, hoping to get as much concrete around the pipe for a good foundation for the pipe to adhere too.

Digging in the dirt is not what we like to do,

in fact, I hate it, but when you got work to do, well you know, you have to do it. So after the dirt was extracted and everything was ready we set the bollards into the holes. What you can see in the picture is the layout of the installation. I always make a circle for where the core drilling will take place. Many times center of the hole is what we use to mark the circumference of the hole to be drilled, and of course a template of the correct size. To our surprise, the asphalt was only four inches deep, which made for more post-hole digging than we like, yuk! The holes had to be at least 2 and a half feet deep, so it took a little while for the digging to get complete. But in the end, it was done. The total number of bollards was 5. They were being installed to protect the transformers for the extra storage facility on Wendover Ave, Charlotte, North Carolina. Right across the street from Sir. Gus, which is a small restaurant I have always wanted to try, and it turns out the wait was worth it as they do have delicious food.

Sharon Rd is still alive, who knew.

Was any building code involved?

Apparently, it was as the bollards were placed more than 5 feet from the transformers as the grey boxes in the picture. In general, they were installed 60" from each other to make everything up to snuff and presentable. The depth of the bollards below grade was 30 inches. A ratio of more than 30 percent of the height was buried to allow for impact. We painted them safety yellow and filled the metal tubes with 5000 psi concrete for extra sturdiness.

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12-inch Thu, 06 May 2021 13:12:12 EDT
<![CDATA[Services - core drilling for the daughters of the confederacy]]> https://core-drill-bit.com/sizes/4-inch/core-drilling-for-the-daughters-of-the-confederacy-288.html https://core-drill-bit.com/sizes/4-inch/core-drilling-for-the-daughters-of-the-confederacy-288.html

The Fame Statue before it was relocated

Today it was our honor to be core drilling for the Daughters of the Confederacy at the new site of the relocated Fame statue to the Old Lutheran Cemetery in Salisbury, North Carolina. Established in 1768 by John Lewis Beard, the cemetery is located at 515 N. Lee Street. 175 tombstones for Confederate soldiers were installed at the cemetery in 1996 according to a WBTV channel 3, Charlotte, NC news story on the subject.

We ourselves we just proud to be part of any historical site work no matter who it is for. We drilled 14 4-inch holes in the 10-inch slab of concrete that the statue will rest on. the reason for the holes was to install solid ironwork provided by Cornette Ironworks, which is a talented and well-established steel fence and ironwork fabrication company here near Charlotte, NC. The reason is clear these days as to why heavy-duty fencing is needed, as vandals sometimes get giddy and tear things up. At one point I was timed on the amount of time it took to core drill one 4-inch hole through the concrete. Turns out it took 2 min. and 3 seconds. How about that? So in the end we got the 14 holes drilled in about an hour and a half, mainly because I am a yapper once you get me started. The concrete itself was indeed 10 inches thick but was not too tough to drill at all. The diamond core drill bits we sell and also use can cut pretty fast. The total time may have taken 2 hours from job start to job finish. Much of that could be attributed to the comparison of Cornette ironworks and Carolina Precision Core Drilling and the types of work that each of us respective two companies do in the North Carolina and Virginia areas

Fast enough to do a small project like this one in the two hours total time, including yapping, setup, teardown, and back in the truck to go if you put your mind to it. Though we expected some protesters the day that we did the work, amazingly there were none to be found. our position on the subject is as follows: Everybody has a right to live and be free from oppression and to have their own opinions, often walking in the shoes of your foe, adversary or partner will change your opinion, for better or worse.

Anyhow the iron bars that will be built around the new located statue will be strong and it will take more than a few dozen persons to uproot it. For years I had passed the Fame statue as it stood at the upper heart of Salisbury on Innes St. but now it will be tucked away in one of the town's hidden corners for fewer to see. While coring this project probably one of the things I have heard that made me stop and think for the moment is "those people should have picked their own cotton", think how that would have changed things. I wonder if that idea had ever occurred to anyone else. Maybe there is one of those altered reality fiction books that is based on that type of story. If there is I am not aware of it.


The Fame Statue after it was relocated

During the summer month of August we had another small core drilling project in Salisbury, North Carolina. The early morning job consisted of core drilling three 1 1/2 inch penetrations through the back of the new Smoke Pit restaurant, which used to be called Wings, on Faith Rd, just across from the Aldi's grocery store. The holes were to get power into the freezer to provide power to the cooling units.

Afterwards we stopped by the old confederate graveyard to check to see if the Fame statue had been moved yet or not. Alas, indeed it had. So we had to get a picture of it in the new location. The long black 2 x 2 steel posts are embedded into the concrete that we had bored holes for early this year. In between are solid bar pickets and cross-members. Quite a formidable caging to keep the statue safe.

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4-inch Tue, 27 Apr 2021 22:37:42 EDT