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. Steps 13, Includes qty. 1, Increments in. 1/32, Hole Size Range 1/8-1/2. 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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Customer Reviews for FREE SHIPPING - Irwin Unibit #1 High Speed Steel Fractional Self-Starting/Hole Enlarging Step Drill Bit, Model# 10231
Review 1 for FREE SHIPPING - Irwin Unibit #1 High Speed Steel Fractional Self-Starting/Hole Enlarging Step Drill Bit, Model# 10231
Like a Whole Set of Drill Bits
February 4, 2014
from Huntsville, AL
"Irwin Unibits are a great addition to the tool box. If you need to drill holes in thin material such as sheet metal there is nothing better. The resulting holes are very clean and can even be chamfered a bit. Once the inital hole is made it can be enlarged in no time. These bits also wear very well."