#3 Unibit Self-Starting Stairstep Bit, 9-Step, 1/4" to 3/4" Diameter, 1/8" Depth by IRWIN

Product ID:


$43.70 / EA
$42.47 / EA
when buying 4+
Price Quote
when buying in bulk
List Price: $55.02
You Save: -$11.32 (-21%)
Price: $43.70 / EA and get $0.62 back in Rewards
  Free Shipping on orders over $ 60
  Estimated delivery time 1-3 business days
  • 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.


Global Product Type Drill Parts and Accessories-Stairstep Bit
Material Steel
Post-Consumer Recycled Content Percent 0%
Pre-Consumer Recycled Content Percent 0%
Total Recycled Content Percent 0%
Drill Bit Range [Min] 1/4"
Drill Bit Range [Max] 3/4"
Sign Up for Special Savings!
Follow Us