Cutters With Very Large Criss-cross Toothing / Super Coarse Used for grinding stone & plaster, tray materials and acrylics. Cutters With Large Criss-cross Toothing/ Coarse Used for chrome-cobalt, chrome-nickel, and other kinds of alloys and are noted for their high wear stability Ball-shaped Cutters Used for chrome-cobalt, chrome-nickel, and other kinds of alloys and are noted for their high wear stability. Cutters With Standard Fine Toothing/ Medium Used for finishing gold, other metals and acrylic plastic materials. Cutters With Fine Criss-cross Toothing/ Medium-fine Used for finishing the surfaces of precious metals, chrome-cobalt, chrome-nickel alloys, steel, as well as ceramics. Cutters With Fine Spiral Toothing Used for grinding alloys made of precious metals, metal-ceramic materials and titanium. The surfaces of the cutters are given fine sharp edges and the spiral system of breaking off the chips, thus ensuring the economical removal of the machined material Cutters With Super Fine Criss-cross Toothing Used for finishing ceramic materials, gold and alloys of precious metals.