IRWIN #1 Unibit Self-Starting Stairstep Bit, 13-Step, 1/8" to 1/2" Dia., 1/8" Depth





$24.62 / EA
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  • Stairstep design.
  • SpeedPoint tip.
  • Patented single-flute edge.
  • Hex-shaped shank.
  • For use on stainless steel, copper, brass, aluminum, plastic and laminates.

Drill a range of holes without changing bits when you equip with a stairstep bit. SpeedPoint tip penetrates quickly and cleanly without the walking issues common among alternative point designs. Patented single-flute edge provides precise depth control though all size steps. Hex-shaped shank enables secure, slip-free lock-down. Self-starting bit may be used on stainless steel, copper, brass, aluminum, plastic, laminates and wood.

Includes one conical stairstep bit.

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