Hyjoy 4" Disc Sander & Electric Polisher Disc Machine — 6000RPM

Construction: Built from steel and aluminum alloy for resistance against corrosion, deformation, tearing and wear, the unit is made to deliver long-lasting durability. Abrasive performance: The abrasive features consistent grit for an even finish, helping smooth a variety of metal surfaces while extending abrasive life. Power and speed: A 200W pure copper motor delivers rotational speeds up to 6000rpm to quickly polish workpieces and reduce processing time. Controls: Stepless speed adjustment is provided by a knob, and a button lets you select the forward mode and other functions to match different tasks. Noise level: Operates quietly at roughly 20–30dB — similar to a library or bedroom — for a relatively silent working environment.