Features100% Brand new!M10/M14 Thread Sanding Pad5inch polishing sander backing pad sanding disc holder plate with M10/M14 thread hole.The tapped hole in the center ideal for connecting to grinder, sander, polisher, and other electric tools.Hook & Loop face, allows quick and easy sandpaper/sanding disc pad changes.Durable, efficient and anti-blocking, not easy to burn the surface of the workpiece on the high-speed polishing machine, precise polishing. Removes rust, paint and dirt, for roughening, de-burring.Widely used in car waxing, polishing, metal and other polishing projects.M8 Thread DA Polisher Sanding PadThese sander backing pads are lightweight and perfectly balanced for faster working and a professional finish, practical sanding disc holder plate.5" flexible sanding backing plate, ideal for all brands of dual action polishing machines, random orbital with 5/16" thread.Quick and easy sanding disc changes with hook and loop attachment system.8-hole dust removal hole design reduces clogging during sanding, keeps abrasive working time longer, and reduces heat buildup.For diameter 125mm air polishers, fits all DA polishers/D/A sander with 5/16" shaft, allowed max 12000RPM operation speed.M10/M14 Thread AdapterM10/M14 polishing pad thread change drill adapter tool backer plate core bits adapter.M10/M14(dia.10mm/14mm) male thread to 8mm shank, made of high quality hardened steel.Electric drill/polishing machine/sander accessories, used for sanding pad disc backing plate with M10/M14 screw hole.SpecificationsDA Polisher Sanding PadDiameter: About 5inch/125mmShaft: 5/16"-24 thread(M8 screw)Maximum Speed: 12000 RPMM10/M14 Thread Sanding PadDiameter: About 5inch/125mmScrew Hole: About 10/14mmMaximum Speed: 12000 RPMAttentionsPlease allow tiny size deviations due to human measurement.Package Included1 x Sanding Pad/Screw Adapter