Kwik Stepper 34403 Multi-Hole Step Drill Bit, 1/4 - 13/16 in Dia x 3-5/16 in OAL, 3/8 in, 12 1/8 in Step, 2
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Tempo Greenlee 34410 Kwik Stepper Single Hole Step Bit, 1/2-Inch : Amazon.ca: Industrial & Scientific
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Greenlee Kwik Stepper 34411 Multi-Hole Step Bit, 7/8 in Dia Max Hole, 1 Step, Steel, 1 Hole Size, 3/8 in Shank
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