Using the automotive tire repair grinding head is straightforward. First, locate the damaged area on the tire. Attach the bowl-shaped grinding head to your pneumatic or electric grinder. Gently press the grinding head against the tire surface, moving a circular motion to remove any debris and roughen the area. Features -Color:Multi -Material:Tungsten steel alloy -Size:5.00X4.20X4.20cm/1.97X1.65X1.65in -Size:4.50X1.10X1.10cm/1.77X0.43X0.43in -Repair : designed to quickly and effectively repair tire tread damage, minimizing downtime and maximizing vehicle performance -Innovative bowl design: the bowlshaped grinding head offers control and ease of use, allowing for precise and efficient tire repairs -Multipurpose tool: ideal for repairing tire treads and also suitable for grinding various metal surfaces, enhancing its utility - durability: constructed from tungsten steel alloy materials, this tool is built to withstand frequent use and provide performance -Userfriendly operation: easy to operate, making it suitable for both novice users and experienced professionals in tire repair Package list: Grinding head + 2 rod tire repair grinding head