Unibit STEP DRILL BIT #4 3/16-7/8 in.

Single-flute cutting edge for greater control through steps. Hex shank prevents slipping in drill chuck. Also available with (TiN) coating for longer life. New SpeedPoint tip penetrates faster than previous Unibits and prevents walking. Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates.