Irwin Unibit Unibit Step Drill Set, 4-Pc, HSS #1/#2/#4/#21 (1 ST / ST) Specifications
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Applicable Materials:Stainless Steel; Copper; Brass; Aluminum; Plastic; Laminates
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Cutting Edge Material:HSS
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Includes:HSS #1 Bit 1/8 in to 1/2 in;HSS #2 Bit 3/16 in to 1/2 in; HSS #4 Bit 3/16 in to 7/8 in; HSS #21 Bit 13/16 in to 1-3/8
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Quantity:4 per set
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Shank Diam [Nom]:1/4 in; 3/8 in
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Shank Type:3-Flat
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Type:Step Drill Set
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Description
Single-flute cutting edge for greater control through steps
Three flatted shank prevents slipping in drill chuck
Non-skid self-starting tip eliminates skidding and the need for center punching
Three flatted shank prevents slipping in drill chuck
Non-skid self-starting tip eliminates skidding and the need for center punching