Four Spiral Flute Cobalt Step Drill Bit, 1/4"-3/4" M35 Wear-Resistant TiAlN Coated Step Bit,1/4" Hex Shank Unibit Step Drill Bit for Metal Stainless Steel Aluminum Wood Plastic(Four Flute - 1/4-3/4)

描述

Four Spiral Flute Cobalt Step Drill Bit, 1/4"-3/4" M35 Wear-Resistant TiAlN Coated Step Bit,1/4" Hex Shank Unibit Step Drill Bit for Metal Stainless Steel Aluminum Wood Plastic(Four Flute - 1/4-3/4)