HRC89 M35 Cobalt TiAlN Coated Step Drill Bit 3-12/4-12/4-20mm 1/4 Inch Hex Shank Metal Drilling Hole Opener For Stainless Steel

HRC89 M35 Cobalt TiAlN Coated Step Drill Bit 3-12/4-12/4-20mm 1/4 Inch Hex Shank Metal Drilling Hole Opener For Stainless Steel

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