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Coring Drill Bit

Core Drill Bits Buying Guide

A core drill is an efficient tool for boring holes into tough substances such as concrete, rock, metal, as well as other tough substances with ease. With the right core bit, the surface doesn’t need to be hard to drill through it. There are also wood core bits that work great for drilling round holes through a desk top for running wires, if you decide to build a computer desk. These materials would otherwise be very difficult, if not impossible to get through; especially with a standard twist drill bit. The core drill bits easily drill almost any hard objects. This includes steel, concrete or brick. They are solidly structured to cut any medium to hard material with ease, efficiency, and power.

Why Choose A Core Drill?

Some of your out there will be thinking “well I can just create a hole with my normal drill”, which admittedly yes you can, but there are MANY reasons why a core drill which is specifically designed for the job, will be so much better than just a standard drill completing jobs like this.

The main reason is the precision and accuracy of the finished job that you will be left with. A ore drill will cut holes within a mm of accuracy, which is something that would be near impossible for even the greatest professional to achieve with a standard drill. Not only this but it can be done in less than half the time, leaving you to get on with the rest of the job that you are completing (or drill even more holes if you are working on a large scale project).

Not only this, but the general usability of these tools are so much better, because they are completing a job that they are specifically designed to do. This means that you will find reduced fatigue, reduced vibration, reduced noise AND reduced debris and dust (thanks to the core drill removing a solid piece instead of gradually chipping away to create the hole).


Core bits can be used for many different applications and to drill into many different materials. Common applications include mineral extraction and drilling holes in concrete and masonry for pipes or manholes. Depending on its construction, a core bit can be used for:

  • Glass
  • Ceramics
  • Tile
  • Rock and stone
  • Granite and marble
  • Concrete
  • Masonry products
  • Hard metals


Can you core drill on an angle?

There may be times when you need to core drill on an angle, and this can be done! BUT, completing angled core drills requires a good quality machine and a lot of precision when you are working so should not be attempted unless you are experienced in using a core drill. It is easier the smaller the core that you are trying to take out.

What core drill bits are there?

It goes without saying that a core drill is a fantastic tool, however a core drill wouldn’t be anything without the core drill bits that it works with! These drill bits are the parts that determine what materials you can work with and the finish you achieve. Most core bits have a diamond coating, which is what makes them as strong and resistant as they are – you will need one of these if you are working with concrete, stone or asphalt. There are also TCT (Tungsten Carbide Tipped) core drill bits that are to be used when drilling certain metals. All of these will come in different sizes depending on the core you want to create.