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Home / Training / How to do a core drilling.

How to do a core drilling.

Below videos are Copyright © Coolman Malaysia SDN. BHD. and Copyright © Maschinenfabrik OTTO BAIER GmbH

Core drilling is a process of creating a cylindrical hole in a material using a core drill and a core bit. To perform core drilling, follow these steps:

1. Select the right size core bit: Choose the right size core bit for the hole you want to drill, taking into account the thickness of the material and the desired diameter of the hole.

2. Mark the center of the hole: Use a marker or a center punch to mark the center of the hole.

3. Attach the core bit to the core drill: Secure the core bit to the core drill by tightening the chuck.

4. Set up the core drill: Place the core drill on the marked center and secure it in place using clamps or a vacuum base.

5. Turn on the core drill: Turn on the core drill and apply a steady, even pressure.

6. Start drilling: Start drilling by gradually increasing the speed of the core drill and applying consistent pressure.

7. Remove the core: As the hole gets deeper, you will be able to see the core is removed. Continue drilling until the desired depth is reached.

8. Turn off the core drill: Turn off the core drill and remove the core bit.

Note: Always follow the manufacturer's instructions and safety precautions when performing core drilling. Make sure to wear protective gear such as eye and ear protection, as well as a safety hat. Additionally, make sure to use appropriate cooling techniques, such as using a water supply, to prevent the core bit from overheating.

Wet core drilling using Shibuya AFS system

Dry core drill using BAIER system

Shibuya Coring Machine TS-255 vs TS-252

Drilling a hole in the concrete using a concrete core bit is a rapid, secure, and somewhat noiseless option. For diverse purposes, drilling holes and apertures in walls, slabs, and columns requires skilled and qualified specialists and high-tech drilling equipment.

Cutting holes in concrete for plumbing, electrical, HVAC, and sprinkler systems is a very cost-effective option. Drilling holes from 14" to 66" in diameter at any angle or depth is no problem for our highly trained employees using a robust and productive concrete coring machine.

TEESIN MACHINERY PTE LTD. provides the most powerful concrete coring machines in Singapore on affordable rent to perform this job anywhere—inside, outdoors, above ground, below ground, or even underwater.

Types of concrete coring machines:


Both wet and dry coring machines are common in the world of concrete.

  1. To prevent the concrete dust from getting stuck in the tips, a wet coring machine utilises water from a water tank to cool the tip and rinse it. Since this is the case, the drill bit lasts longer, and the drilling process is sped up.

  2. Since dry core drills don't utilise water, they produce more dust than wet ones. You may use this dry concrete coring machine where it would be dangerous or impractical to utilize water.


Drilling's uses include installing plumbing and electrical lines in foundations, securing things to concrete using anchors, and analysing the composition of rocks and strata.

Vacuum attachments are one method for securing a concrete coring machine to a wall or floor without drilling holes. Although handheld core drills may be used without a drilling rig up to a specific diameter, certain models may need to be used with a rig for larger holes.

How does a concrete coring machine work?


When performed properly, concrete core drilling results in a hole being drilled through the concrete surface. It might be a wall, a ceiling, or the ground. Still, this is often done in cellars and basements behind the scenes. Concrete core drilling facilitates the installation of utility lines in buildings like residences and commercial spaces. Concrete coring is a common construction practice, but it must be done carefully so that the wall's integrity is not affected.

You'll require top-shelf core exercises to get perfect outcomes. Each drill bit has a hollow end, and the shank is generally cylindrical. Complications may emerge while choosing the right-sized bit for the required whole size.



The apparent ease of this procedure should not be taken as a guarantee that there won't be any hiccups or challenges along the way. It may be necessary to switch to a new set of resources. Small holes, such as those needed for installing phone lines and Internet connections, are a good example of where a hand drill may make a difference. However, an exercise that may be attached to the wall may be necessary on occasion. A wall-mounted drill is ideal for concrete coring when several similar holes must be drilled.

Potential Problems:


It is possible to run into complications while drilling a core hole in the concrete. It's not unheard of for a drill bit to get jammed in a wall. To drill a core through concrete, you'll need a good water supply; otherwise, you risk breaking drill bits. Drilling creates hazardous airborne particles that pose health risks to employees, particularly if silica and asbestos are present. Drill bits may get slowed, bent, or broken due to friction. When this occurs, a new bit must be installed before the concrete can be shaped.



We offer you a complete range of concrete coring machines with all their essential tools to help contractors overcome their challenges through our fleet of temporary equipment solutions. We offer rental service, repair service, and sales service for concrete coring machines of local and international brands from other countries like China, Europe, Japan, and the United States.

We have various sizes and combinations available for all of our concrete equipment rentals. Let us know if you are unsure of what you need, and we will help you analyse your needs and choose the goods that are the most effective match.

Teesin Machinery Pte Ltd is a construction machinery supplier that provides core drills, tools and solutions for removing cylindrical shaped material from the surfaces such asphalt, rock concrete and many other materials; setting up plumbing, heating and electric lines; or collecting samples on wall, pillars and slabs for concrete strength analysis.

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