Get it all done with one when you choose Unibit stairstep bits. Single-flute cutting edge provides precise depth control though all size steps. Shanks flat side surface ensures slip-free chuck lock-down. Blunt-tip, hole-enlarging bit may be used on stainless steel, copper, brass, aluminum, plastic, laminates and wood. Materials: Steel Drill Bit Range Min: 1/2 Drill Bit Range Max: 1.
Features:
- 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
- Patented single-flute cutting edge gives the user a true round hole every time
