Hook and Loop Backing Pad & Drill Adaptor 20 x Mixed Grit Sanding Discs A durable hook and loop backing pad. For use with hook and loop sponges, bonnets and discs. Compatible with all power and air drills with a 10mm chuck capacity. Width: 125mm. Sponge Thickness: 2mm. Maximum: 12,200rpm. Compatible with angle grinders and sander polishers. Suitable for: Woodworking, paintwork, metal and all types of preparation work. Other backing pads, sanding sheets and fitments available in our shop. Pack Contents: 1 x 125mm Backing Pad. 1 x 10mm Drill adaptor. 8 x 60 Grit: Coarse. 4 x 80 Grit: Medium. 4 x 120 Grit: Fine. 4 x 240 Grit: Extra Fine.