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tungsten carbide step drill bits

Custom Carbide Combined Drill & Countersinks

Custom Carbide Combined Drill & Countersinks

Customized Solid Carbide Step Drill, TiAlSin Coating,made by micro grain carbide, long working life, wear resistance.

Model:Custom carbide step drills
Customized Solid Carbide Step Drill For Cast Iron

Customized Solid Carbide Step Drill For Cast Iron

Customized Solid Carbide Step Drill, TiAlSin Coating,made by micro grain carbide, long working life, wear resistance.