centre bit

noun

1. a drilling bit with a central projecting point and two side cutters

Example Sentences

Archaeologists from the programme said the fish counter would have been whittled to shape, then polished - the mouth cut with a saw and the eye inscribed with a centre bit tool or compass.

From BBC

With 11⁄2-in. centre bit drill the holes indicated by b b, right through.

From Project Gutenberg

They probed with centre bits and gimlets into every portion of the room.

From Project Gutenberg

In the adjoining piece a hole is bored with a centre bit and a slot is cut with an 1⁄8 in. chisel.

From Project Gutenberg