Feature:1. THOROUGHLY: Simultaneous of the hub and studs using an internal stainless steel stud system designed to thoroughly remove debris or contamin from the felly, tread, studs and brake drums that could affect the overall tire or wheel process2. QUICK SCALE REMOVER: Easily removes rust, corrosion and other debris build up on tire rim, wheel studs and brake drums. Metal scale remover tool for metal surfaces and bolts or screws, and internal stainless steel bolt3. WORK WITH IMPACT GUN: Stud rust removal tool can work with 1/2in drive impact gun, support or electric mode for quick 4. WITH WIRE BRUSH AND GRINDING WHEEL: Lightweight design has an internal wire brush and a removable grinding wheel on the lower end for effective removal of rust from metal surfaces and screws and bolts, additional grinding wheel attachments can be installed when you want to sand metal surfaces5. GOOD COMPOSITION: Rust removal tool with 2 grinding wheels, when using with a 1/2in impact wrench or electric drill for fast and efficient useSpecification:Item Type: Stud Rust Removal ToolMaterial: Plastic, stainless steelColor: Black, red, purpleMaximum Stud Length: Approx. 8cm / 3.1inApplicable Screw Length: Approx. 3 ~ 80cm / 1.2 ~ 31.5inApplicable Screw Diameter: Approx. 3 ~ 16cm / 1.2 ~ 6.3in Package List:1 x Stud Rust Removal Tool2 x Grinding Wheels