Features: 3 replacement discs, diameter 160 mm, with centre hole guide and integrated grinder for cleaning the wheel centre; for optimal cleaning of the system surface of the rim interior; ideal for cars, vans and large limousine wheel hubs up to diameter 160 mm; for min. Wheel centring diameter 51 mm. For use with drills and cordless screwdrivers (max. Rotation speed 1,500 rpm). Velcro fastener for quick change of the cleaning disc. No spark flight wear arm. Maximum service life (per disc approx. 100 vehicles)Prevents distortion of the wheel tightening torques due to clean contact surfaces; minimum dust development due to open-pored abrasive; delivered without grinding disc; technical data: key width (inches): 19/32 intake in inches: 3/8 inch square drive: 3/8 inch diameter: 21.0 mm; weight: 175 g; total length: 63 inch length: 25 mm; material: finest chrome vanadium steel; high-gloss chrome-plated; key width: DIN decoration not ISO 3120 inches, profile 2: ISO standard