The cold chisel has a flat cutting edge, but related chisels are wedge-shaped (cape chisel), half-round, diamond-shaped, or round. Cold chisels are used to cut rivets, to split nuts or bolts that ...

With a simple freehand sharpening method, you can achieve a razor-sharp edge using just three flat diamond sharpening stones ...

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 ...