Keep hollow mortising chisel edges sharp for fast and efficient cutting!Diamond-coated abrasives hone the hardest steel, including carbide.Cone shape puts the final edge on inside bevels.Sharpens mortising chisels up to 1/2" size.Set includes handle, 1/4" quick-change chuck, 2 diamond cones (coarse and fine grit).Please Note: We have lowered the price of our current inventory due to some slight blemishing that has occurred on the metal collar. The blemish is cosmetic only, and has no effect on the strength of the chisel handle. Cone shape puts the final edge on inside bevels. Sharpens mortising chisels up to 1/2" size.Set includes: Ergonomic handle for comfortable, slip-resistant gripping power. 1/4" quick-change chuck Coarse 220 grit cone for removing nicks and burrs Fine 600 grit cone for final honed cutting edge.