We supply a huge range of drill bits from leading brands: BlueSpot Tools, Black & Decker, Faithfull, Dewalt, Irwin, Metabo, Milwaukee and Rawlplug.
Our stock includes:
- Twist and jobber drills
- SDS drills
- Step drills
- Cone drills
- Drill sets
- Hole cutters
- Core drills
- Arbor drills
- Impact drills
We supply for all applications:
- Precision woodworking
- Drilling hard metals
What Are Drill Bits?
They are cutting tools used to remove material to create holes, almost always of circular cross-section. They come in many sizes and shape and can create different kinds of holes in many different materials. In order to create holes the bits are attached to a drill, which powers them to cut through the workpiece, typically by rotation. The drill will grasp the upper end of a bit called the shank in the chuck.
Drill bits are the most common accessory for drills. There are many different types, with each being designed for different, specific applications and operated in different ways.
It is important to note that you should not use a bit that exceeds the maximum drilling capacities of your drill, as this could cause permanent damage to your tool.
There are a few pointers that, when followed, will preserve the life of any drill bit type.
- Hard materials require slow drilling speeds, and soft materials require faster drilling speeds. Also, speeds should generally be decreased as the hole becomes deeper.
- You can centre punch holes first for more accurate drilling.
- For better drilling results, apply cutting fluid to the bit when drilling metals (with the exception of brass and iron).
- If you intend to drill all the way through a piece of timber use a wooden backing board behind the work to avoid material break out.
- Always let the bit cool naturally. Never force them to cool down in water (or any other liquid).
- Large bits will transfer substantial reaction forces onto the drill, so be prepared to hang on.
- All bits should be lifted frequently to clear material from their flutes, and also to increase air flow around the bit to help it cool.
- Always ensure bits are sharp to ensure less load on the power tool and better cutting results.
- Always apply pressure in a straight line with the drill bit. You should apply enough so as to keep the drill biting, but not so much that the tool’s motor stalls or the bit deflects.
- To prevent breaking through the material, reduce the pressure you are applying and ease the bit through the last part of the hole.