Application: Quick and easy removal of rust and dirt from contact surfaces of wheel hubs and brake discs with wheel bolt support. The grinding pad is made of aluminum with an 8-point profile that enables safe and firm fixation of the grinding wheels. It can be attached to pneumatic, cordless, and corded drilling machines. The hexagon insert provides a firm hold on the device. The 8-point profile ensures a secure fixation of the grinding wheel to the base component. Suitable for wheel hubs with stud bolts (diameter of grinding zone 40 or 50 mm; stud bolt maximum 55 mm length), compatible with brands such as Ford, Porsche, Volvo, and Japanese passenger cars. Wear-resistant for approximately 50 vehicles per wheel. This 12-piece set includes: 1 base component made of aluminum, 6 grinding wheels with a diameter of 50 mm, and 5 grinding wheels with a diameter of 40 mm. The open-pored abrasive material and cup-formed grinding disc minimize dust formation and prevent sparks. Net weight: 0.27 kg. Number of tools: 12.