Irwin Industrial UniBit Step Drill Bits

Ideal for drilling holes in thin materials such as mild steel, copper, brass, aluminum, plexiglass, wood and laminates. Single fluted cutting edge results in greater control and perfectly round holes. Commonly referred to as step drills, Irwin Unibits are a step above the competition.

High Speed Steel Fractional Self-Starting

• Single-flute cutting edge for greater control through steps
• 3 flatted shank prevents slipping in drill chuck
• Also available with titanium nitride 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