Roloc™ Light Grinding and Blending Dis, 3 in, TR, Coarse, Ceramic Aluminum Oxide, 18000rpm, Blue ORS NASCO twist resistant shaft anchor Tip Ident® quickly identifies twist resistant shaft anchor Tip Ident® quickly identifies nut driver hex orientation and size by color coding the handle ends so you can easily engage the nut driver with the fastener Low Grade Steel Scotch Brite material won’t melt on hot welds allowing blending without waiting 3M ceramic aluminum oxide abrasives combines high cut rate with blending ability to eliminate finishing steps Disc backup pad helps provide high edge durability for consistent finishing and long disc life