DRILL BIT
A cutting tool used to drill cylindrical holes. A drill bit can be used with hand tools (such as a hand chuck or bow drill) or with machines (drill press, lathe, milling machine, etc.). (Synonym: bit).
A cutting tool used to drill cylindrical holes. A drill bit can be used with hand tools (such as a hand chuck or bow drill) or with machines (drill press, lathe, milling machine, etc.). (Synonym: bit).