A twist drill. / Any other style of cutter, for example a spade drill, that is rotated and fed in a similar manner as a twist drill to of cut a hole in metal, wood or other materials.

plural of drill instructor

plural of twist drill

plural of drill jig

plural of drill bit

A type of sea snail, Urosalpinx cinerea (and others in subfamily Ocenebrinae, such as genera Urosalpinx, Eupleura, and Ocenebra), that uses an eversible gland to soften its prey's shell, and then drill a hole in the shell to consume the oyster or other shellfish.

plural of oyster drill

To drill a hole through multiple assembled parts at once, so as to ensure that the parts align properly in the final assembly.

A form of British military uniform made of cotton drill, often used in tropical service.

A drill of the correct size to produce the hole for a specified tap size.