50Pcs 1/1.5/2/2.5/3mm M35 HSS-CO Cobalt Twist Drill Bit For High Tensile Stainless Steels Drilling

50Pcs 1/1.5/2/2.5/3mm M35 HSS-CO Cobalt Twist Drill Bit For High Tensile Stainless Steels Drilling

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