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Tungsten carbide drill bit/

Ocut HRC55 Tungsten Steel Drill Bit 3-20mm Drill Bits for Machining Steel

Processing hardness:HRC65°
Coating: Nano coating
Applicable processing materials: alloy steel/tool steel/stainless steel/quenching material, etc.
Material: solid tungsten steel

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Ocut HRC55 Tungsten Steel Drill Bit 3-20mm Drill Bits for Machining Steel

 

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