ITEM NAME:38mm Car Tire Repair Grinding Head Coarse Polish Buffing Wheel With Linking R_3C Features: 100% brand new and high quality buffing wheel with linking rod. 70 grid abrasiveness coarse buffing for good effect of tire repair grinding. Made of premium tungsten alloy, it is of high strength and long durability. Easy to use and operate. Can be used with air pneumatic tools. Suitable for most of tire repair works. A good helper for your vehicle tires. Specifications:.70 grid abrasiveness coarse buffing for good effect of tire repair grinding. 1 Linking Rod. Grinding Head Size: 38-40mm / 1.49"-1.57". 1 Buffing Wheel. Thread Size: 9mm / 0.35in. Suitable for most of tire repair works.