This extra coarse (70 grit) Abrasive Sharpening Hone is designed for heavy-duty sharpening of damaged and abused power and hand tools around the shop, farm, home and garden.
It makes simple restoration and sharpening easy for everyone.
CAUTION: Knife sharpening is an inherently dangerous activity. Used properly this sharpener cannot hurt you but a carelessly handled blade or pointed object can.