[Application] The main power of the polishing machine comes from compressed air. It can be used for grinding and polishing the camber of tires, rubber products, hardware handicrafts, stone and other materials. [Easy to use] This product uses a platen start-stop switch, which is easy to operate. There is a speed control switch on the back of the product, which can be adjusted with a flat-blade screwdriver. Speeds from 0 RPM to 2500 RPM. [Exquisite Design] This product is equipped with a tungsten steel polishing wheel head, which is and easy to replace. 11mm precision chuck, easy to install and remove. The pneumatic polishing tool is equipped with a muffler tube to reduce exhaust noise. The rear ventilation design avoids direct blowing. [Convenient Tire Repair]Provide high quality Tire Roller and Tire Inner Liner Scraper for easy tire repair. Colour:Black Material:steel Package Contents: 1 x Tire Repair Set Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.