... ,tank etc surface to remove paint,rust,corrosion,welding etc Poly abrasive/ginding discs in black grain or blue grin for ... cleaning,polishing, abrasiving meatal,car,wood,steel tanks surface to remove paint,rust,corrosion, welding Item No: Description ... .2mm x1/2" thickness17813222 178mm x22.2mm x1/2"thickness Poly grinding disc