Unibit-5 1-4 Inch-1-3-8 Inch Step Drill

New SpeedPoint? tip provides 6X faster initial penetration time than before, and eliminates the need for center punching. Single-fluted cutting edge assures true round holes, and allows greater control with less vibration . Ideal for drilling holes in thin materials such as mild steel, copper, brass, aluminum, plexiglass, wood, and laminates- SKU: ZX9ORSNO4547