Step Drill Bits

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Irwin UNIBIT 10310 Self-Starting Step Drill Bit, 1/2 in Dia Min Hole, 1/2 in Dia Max Hole, 1 Step, High Speed Steel, 10 Hole Sizes, 1/4 in Shank - Step Drill Bits
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Irwin UNIBIT 10310 Self-Starting Step Drill Bit, 1/2 in Dia Min Hole, 1/2 in Dia Max Hole, 1 Step, High Speed Steel, 10 Hole Sizes, 1/4 in Shank
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 - Step Drill Bits
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Irwin Unibit 15104 Self-Starting Hss Step Drill, 3/16 in Dia Min Hole, 7/8 in Dia Max Hole, 12 Steps, 12 Hole Sizes, 3/8 in Shank
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