Irwin High Speed Steel Fractional Self-Starting 1/4" x 1 3/8" x 1/8"
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