High Speed Steel Fractional Self-Starting, 1/4 in-3/4 in, 9 Steps

Features: 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