BGTEC 6/6/8/10mm Diamond Drill Bits+ 6mm Cross Hole Opener Positioning Hex Quick-Fit Shank Ceramic Marble Drilling Core Bits
This set includes 5 diamond drill core bits and one cross hole opener, suitable for hand or bench drills. The bits are diamond-coated and feature vacuum brazed technology.
- The description claims the cross hole opener provides accurate positioning but is not for drilling.
- The description claims wax inside helps cool the bits and prolongs their working life.
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