The rainbow cutters are a highly diamond impregnated rubber disc which can be used on all types of material ranging from Zirconia, alumina, ceramic and all kinds of alloys. The Rainbow Cutters come in three different coarse grits.

The Red Course can actually cut and abrade Zirconia and all types of ceramics as well as all dental ceramic materials. Blue Medium Grade can remove the deep scratches and smoothen the surface of Zirconia and all types of ceramics as well as all dental ceramic materials. Grey Fine Grade begins to clear up all minor surface scratches and prepares the surface for a very high luster finish.