Adjustable Speed Electric Valve Grinder Suitable for Automobile, Motorcycle, Marine Valve Grinding and Repair Tools 1. All-steel gears of automobile valve speed control grinder are durable and high-quality materials 2 adjustable supports Supports 360° rotation for height adjustment. The bottom has a strong magnet, which is not easy to shake when in use. 3. Speed gear The speed of the gear is easy to use, and the safety protection is guaranteed 4. Strong power Strong power and precise positioning Copper core valve grinder Electric speed-adjustable valve grinding tool Special variable-speed beater leather bowl sand for automobile engine Wide range of uses Suitable for a variety of valve grinding industrial-grade quality, automatic grinding, stable and reliable motor Widely used in cars, tractors, trains. The repair and grinding of large, medium and small internal combustion engines such as ships and motorcycles is the dream repair tool for the majority of internal combustion engine repair factories. Product name : Adjustable speed electric grinder Power: 220V/ 50HZ Work shock: infinitely variable speed Bracket base diameter: 78mm Item model number: TS-88 Cup diameter: 25mm 32mm 36mm Effective times: 300-100 times/min Scope of application: all kinds of auto repair valves