Industrial grade multifunctional pneumatic grinder for polishing/rusting/waxing/grinding The speed adjustment function conveniently controls the air and changes the rotation speed. Suede Nylon Sticker: Suede Nylon Sticker is not easy to fall off and comes with a variety of grinding discs Eccentric shaft design, eccentric arc of 5mm, strong, smooth and even grinding Silent exhaust holes reduce noise, continue to dissipate heat, and continue to work without hot., Manufacturer: Akfldms