Irwin Unibit UNIBIT 3

Irwin Unibit

HSS Step Drill Bit, 1/4-3/4, Step1/16

UNIBIT 3 62653
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$45.08 + 3 Business Day Shipping $7.15

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ItemStep Drill Bit
Size1/4 to 3/4"
Shank Size3/8"
Number of Hole Sizes9
Step Thickness1/16"
MaterialHigh Speed Steel
DesignEnsures True Starts Without Walking Even on Curved Surfaces
Weight 0.150000


HSS Step Drill Bit, Size 1/4, 5/16, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4 To 3/4 In., Shank Size 3/8 In., Number of Hole Sizes 9, Step Thickness 1/16 In

Step Drill Bits
  • Ideal for drilling multiple diameter holes in steel, copper, brass, aluminum, PVC, wood, and laminates up to 1/8" thick. Irwin bits have Speed Point tip design and single flute cutting edge. Cobalt bits resist heat buildup and have 3-sided flattened shank.

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