plural of drill press

plural of drill rig

plural of drill floor

A fluid used to aid the drilling of boreholes, serving to provide hydrostatic pressure, to keep the drill bit cool and clean, and to suspend the drill cuttings.

plural of drilling fluid

A powerful drill that can cut through stone.

An agricultural device for dropping seed and manure into the soil simultaneously.

plural of drill string

A column of drill pipe on a drilling rig, which transmits drilling fluid and torque to the drill bit.

A tool for drilling holes, having the bit mounted in a stock and rotated by a ratchet wheel and ratchet lever.