We use drill bits of different sizes and test them on wood, plasterboard, concrete and metal. Because we are not set up to do lab testing as yet, we also utilise online reviews of drills by brands ...

Twist drill A standard drill bit with two twisted, fluted cutting edges to remove material Wood Flat drill Has a flat face, a pin at the bottom, and two cutting edges. Allows for a flat blind hole ...

Drill bits are primarily used for creating circular holes in materials from drywall and wood to metal and masonry. They might create a hole for an anchor or fastener, or a passage to feed wiring.

It can be surprisingly tricky to get your bit to fit into your drill the right way. Fortunately, it's not too complicated if you follow these simple steps.