Crown Diamond Violent Drill Bit GHZG10.0-10.5-1.5D-S12 24.9-25.8-5.0D-S25 Extended Internal Cold Gun Drill Bit Teeth Drill Tools

Crown Diamond Violent Drill Bit GHZG10.0-10.5-1.5D-S12 24.9-25.8-5.0D-S25 Extended Internal Cold Gun Drill Bit Teeth Drill Tools

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