These handy kits includes holder and corresponding cleaning pads to service virtually all passenger cars, light trucks, and SUVs. The durable 3M nylon web resurfacing pads scour away rust and built-up road grime without damaging rotors, hub assemblies, and brake components like a wire brush or wheel and without the hazards of chemical cleaners. Fits most power impact drivers to quickly sand rust off lug studs and rotors on the hub assembly Sanding pads attach with half turn thread The brake hub resurfacing kit includes a holder and four sanding discs For most domestic and import vehicles with either front or rear disc brakes Run at speeds of 10,000 rpm or less for best results