3" Bell Backer

These are the newest addition to the rigid aluminum bell backers, now in 3".  Made from the same 6061 aluminum as the 2" to keep spinning mass down, while offering much needed support.  This offers a rigid backer, without the worry of it shattering  or breaking  if dropped or catching an edge. Using genuine 3m threaded inserts, that work for all brands of " Roloc" style discs, brushes, or scotch brite.