Irwin® Unibit® 10231 Uncoated High Speed Steel Self Starting Step Drill Bit, 1/8 - 1/2 in, 1-Flute, 3-1/8 in L

Step Drill Bits
269916 MFG #: 10231
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  • Finish/Color: Uncoated
  • Item Name: Step Drill Bit
  • Manufacturer: Irwin® Unibit®
  • Material: High Speed Steel
  • Maximum Drill Diameter: 1/2 in
  • Minimum Drill Diameter: 1/8 in
  • Number Of Drill Stages: 13
  • Number Of Flutes: 1
  • Overall Length: 3-1/8 in
  • Point Type: Speed Point
  • Shank Diameter: 1/4 in
  • Type: Self Starting

Irwin® Unibit® Self Starting Step Drill Bit, 13 Drill Stages, 1/8 in Minimum Drill Diameter, 1/2 in Maximum Drill Diameter, Overall Length: 3-1/8 in, 1 Flutes, 1/4 in Shank Diameter, Speed Point, High Speed Steel, Uncoated, 1/32 in THK Step, Measuring System: Fractional

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  • Features
  • Single flute cutting edge for greater control through steps
  • Hex shank prevents slipping in drill chuck
  • New SpeedPoint tip penetrates faster than previous Unibits and prevents walking
  • Applications: For drilling holes into thin materials such as stainless steel, copper, brass, aluminum, plastic and laminates up to 1/8 in THK