... *100m Abrasive: Hiden super coated aluminum oxide corundum, there is Fused Zirconia Alumina in grits: 60#, 80#, 100#, 120# Grit: 60#-2000# Usage ... is, the easier it can perform itself. Besides,there is Zirconia Corundum in grits: 60#, 80#, 100#, 120#, so the sanding ...