M35 COBALT HSS STEP DRILL: M35 cobalt HSS has the characteristics of high red hardness, high wear resistance, and sintering resistance. Included Components: Four Spiral Flute Cobalt Step Drill Bit 3PCS.
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M35 Four Spiral Flute Cobalt Step Drill Bit Set 1/8″-7/8″, Industrial Grade W…
M35 COBALT HSS STEP DRILL: M35 cobalt HSS has the characteristics of high red hardness, high wear resistance, and sintering resistance. Included Components: Four Spiral Flute Cobalt Step Drill Bit 3PCS.