M35 Cobalt Step Drill Bits 4-12/4-20/4-32mm HSS Spiral Groove Hex Shank Drills

M35 Cobalt Step Drill 4-12/4-20/4-32mm High Speed Steel Drill Bit Spiral Groove hex Shank For Stainless Steel Hole Openning. Material: M35 HSS Cobalt. 1X HSS Cobalt Step Drill. Shank: Hex. Groove: Spiral.

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