M2 Cobalt HSS Step Drill Bit 7/8" to 1-3/8" Impact Unibit Stepped Drill Wear-Resistant Titanium Coated 1/4" Shank

M2 Cobalt HSS Step Drill Bit 7/8" to 1-3/8" Impact Unibit Stepped Drill Wear-Resistant Titanium Coated 1/4" Shank

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