The Proxxon 2" Back Up Pad (50mm) is the essential interface between your Proxxon long-neck tool and your sanding or polishing pads. Its soft foam construction conforms to surface contours, ensuring even pad contact and consistent pressure — critical when working on stone, tile, and hard ceramic surfaces where uneven pressure causes scratching or uneven finish. Key Features Diameter: 50mm (2") Hook & loop (Velcro) fastening for quick, tool-free pad changes Foam cushion layer for even pressure distribution on curved and flat surfaces Compatible with all 50mm diamond sanding and polishing pads Compatible Tools Proxxon LHW/A Cordless Long Neck Angle Grinder Proxxon WP/A Angle Polisher Recommended Sanding & Polishing Pads Pair this backing pad with the Proxxon Diamond Sanding & Polishing Pads 50mm (SKUs 28656–28659), available in 50, 100, 200, and 400 grit — ideal for porcelain, ceramic, granite, marble, quartz, quartzite, and sintered stone.