Tyre repair tool: This rim grinder is designed for tyre change, rim maintenance and brake system repair. It easily replaces old, worn or lost original grinding tools, ensuring a clean rim contact surface and more precise rim mounting High-quality materials: the rim grinder is made of high-strength, impact-resistant plastic and is therefore wear-resistant, drop and ageing resistant. The inner sanding surface features a specially textured structure that quickly removes rust, oil, brake dust, metal abrasion and other surface contaminants from the rim surface 1/2 inch drive: This polishing wheel is compatible with 1/2 inch square heads and comes with a 1/4 inch hex drill adapter. This makes it easily compatible with drills and other power tools and ensures more efficiency Easy to use: the whetstone has an ergonomic design with a comfortable grip and is therefore easy to use even with gloves. Thanks to its lightweight and compact design, it can be easily used even in confined spaces and allows one-handed cleaning Versatile: with an inner diameter of 90 mm and an outer diameter of 150 mm, it is suitable for cars, commercial vehicles (trucks and vans), motorcycles, SUVs and off-road vehicles