What Is a Drill Bit?

A drill bit is a cutting tool that fits into a drill (an electric, pneumatic, or hand-powered tool used for boring holes). It is used to cut holes in various materials by rapidly rotating. Bits come in various shapes and sizes, depending on the material to be cut and desired hole characteristics, but all have similar parts.

Parts of a Drill Bit

• Point: the cone-shaped tip of the bit

• Spur: the tiny, sharp tip of the point that is used to centre the bit in the hole to be cut

• Cutting Lip: the sharp, spiral edge of the bit that cuts the material

• Flute: the spiral channel that runs along the lip to help remove the material during drilling

• Shank: the end of the bit that slides into the drill’s chuck (a clamping mechanism)