Darex 100-Grit CBN Point-Splitting Wheel
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100-Grit CBN (Borazon) Point-Splitting Wheel is used on HSS and cobalt drill bits for the XT-3000 and XT-3000 Auto Tool-Drill Sharpener. It's long-lasting, requires no dressing and sharpens approximately 5,000 bits before needing replacement.