Irwin 10311 Unibit11 7/8-Inch 3/8-Inch Shank Step Drill Bit

Irwin 10311 Unibit11 7/8-Inch 3/8-Inch Shank Step Drill Bit Review

Irwin 10311 Unibit11 7/8-Inch 3/8-Inch Shank Step Drill Bit Feature

• Ideal for drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates
• Single-flute cutting edge for greater control through steps
• Patented single-flute cutting edge gives the user a true round hole every time
• 3 faltted shank prevents slipping in drill chuck
• New SpeedPoint tip penetrates faster than previous Unibits and prevents walking

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.