3M Ninja Cushion backing discs are used between backpads and abrasive discs to eliminate chatter and allow for a smoother grind. Remove peel-and-stick back and adhere rubber backing discs directly to the backpad. Apply abrasive discs (sold separately) to the rubber backing disc. Package includes three cushion Ninja backing discs. Ninja backpads are reusable.
Rotary Tools & Accessories>3M>H20-3703TLTools>Jewelers Tools>Rotary Tools & Accessories3Mhttps://www.firemountaingems.com/itemdetails/h203703tlH203703TLCushion backing disc, 3M™ Ninja™, rubber, black, 3-inch replacement disc for Jooltool™. Sold per pkg of 3.//image1.fmgstatic.com/images/p3703tlb.jpg40.8133.70Only $11.24 per discON SALE