Application: optimal cleaning of the attachment surface of the rim interior prevents corrosion-related distortion of the wheel tightening torques. Cleaning the contact surfaces before balancing ensures correct results. Outer diameter up to 160 mm ∅ For wheel centering diameter: min. 51 mm speed max. 500 rpm 2-piece set contents: 1 base body 1 grinding disc diameter 160 mm 11 mm external hex socket with 3 attachment surfaces for attaching e.g. on pneumatic, battery and network-bound drills with centre hole guide and integrated grinder for cleaning wheel centres Low wear : approx. 100 vehicles per disc Minimal dust development due to open-pore abrasive and pod-shaped grinding disc. No sparks. Number of tools: 2.