Features: material: sanding machine, made of aluminium alloy base and stainless steel body, Features not easily rusty, wear-resistant, solid, durable. Powerful motor: pure copper motor, with sturdy protective dust cover, runs in low noise, dissipates heat fast, delivers high speed up to 9000rpm. Excellent performance: motor direct-drive design, which means the sanding belt is directly driven by the motor shaft, increases efficiency, better than others. Convenient adjustment: 7-level rotating speed can be easily adjusted via power adapter, meeting different demands; the angle of working bench is adjustable, for better, precise work. More accessories: in addition belt sander and power adapter, it comes with five wrench and ten different sanding belts, enough for various use. Specifications: Material: Stainless steel Working Current: 4-20A Input Voltage: 110-240V Motor Speed: 9000rpm Input Speed: 4500-9000rpm Speed: 7 adjustable by 12-24V power adapter