IRWIN Unibit Step Drill Bit #20 (10220CB)
$14.99
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9/16"-1" 8 hole sizes Get it all done with one when you choose Unibit stairstep bits. Single-flute cutting edge provides precise depth control though all size steps. Shanks flat side surface ensures slip-free chuck lock-down. Blunt-tip, hole-enlarging bit may be used on stainless steel, copper, brass, aluminum, plastic, laminates and wood.
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