Drill
a metallic tool for boring a hole in metal or hard material such as stone. Its form varies with the material in which it works. The action in metal is usually rotative, and the tool has two or DRIMYS more cutting edges. In stone drills the action is rotative or reciprocating; in the latter case the tool is alternately lifted and dropped.
In agriculture, a machine for sowing grain in rows; in fabrics, a heavy cotton twilled goods, used especially for lining; drilling: in military and naval language, the act or process of training soldiers or sailors to military or naval warfare, as in the manual of arms, the execution of evolutions, etc.