This 130 gram pad can be used on a 6” sander, due to the 30% increase in weight. THIS PAD IS NOT DESIGNED FOR USE ON 5” SANDING MACHINES. This backing pad is designed to allow the use of both 5” and 6” abrasives with the same tool. This pad can be used with Mirka’s net abrasive products, or -647 series 5” abrasive discs with an 8+8+1 hole pattern. It can also be used with conventional 8 hole grip backed discs or competitive products using an 8+1 hole pattern. This 130 gram pad may be used on 6” models of Mirka®DEROS, Mirka®CEROS and PROS sanders. The pad is rated for use on Mirka 6” sanders with a maximum speed of 13,000 rpm, and uses a standard 5/16”-24 threaded attachment.