... wheel, adding controllability of cutter grinding.1. Standard accessory can grind lathe tool, face and side cutters, hobbing cutters, circular paper cutters ... ,etc. 2. Choosing 50E accessory can grind MO-type 4# ... milling cutter, ball cutter, R-shape lathe tool,etc 3. Choosing 50K accessory can grind MO-type 4# coning or diameter ...