Male Diskit Blue 5/8-11 Connetion 5" Diskit threaded Foam Rubber Backup Heads. Tough and flexible polyester urethane foam body engineered for maximum tensile strength and enlogation. For use on most Q.R.S-backed or self-adhesive grinding and polishing discs. Maximum 10,000 RPM, Flexible edge allows pad to conform to surface contours.

PSA Backed Sandpaper 5" Diskit threaded female Foam Rubber Backup Heads special for ogee shape. Tough and flexible polyester urethane foam body engineered for maximum tensile strength and enlogation. For use on most Q.R.S-backed or self-adhesive grinding and polishing discs. Maximum 10,000 RPM, Flexible edge allows pad to conform to surface contours