Cotton Fiber MX Quick-Lock Discs

Description Can outlast AO Quick Change Discs by up to 10 times the life Grinds and finishes in one step Non-loading on aluminum and brass. TIP:  These discs should be ordered one or two grain sizes coarser than the coated abrasive disc.  Example:  An 80 grit coated abrasive disc should be substituted with A54 or coarser Cotton Fiber Disc.