Irwin Unibit #1 High Speed Steel Fractional Self-Starting/Hole Enlarging Step Drill Bit, Model# 10231

SpeedPoint tip geometry penetrates stainless steel 6 times faster than before. Single-flute design minimizes vibration and controls progression through the drilling steps. U.S.A.

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Quantity	1
Hole Size Range	1/8 to 1/2 in.
Increments (in.)	1/32
Steps	13

Ideal for drilling holes into thin materials (1/8in. max.) such as stainless steel, copper, brass, aluminum, plastic and laminates
New SpeedPoint tip penetrates faster than previous Unibits and prevents walking
Single-flute cutting edge for greater control through steps
3 flatted shank prevents slipping in drill chuck
Model 10231

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