Mini Grinder DIY Electric Belt Sander, Electric Belt Sander With Speed Control Power Supply Professional Polishing Grinding Machine Edges Sharpener DIY Fixed Polishing Grinding Machine Features 锛?br /> With Speed Control Power Supply enables variable speed for optimum adaptation to the material achieve A smooth, even and professional finish. The base is stable and sturdy, can be placed on the table, labor saving. The design of the eccentric adjustment wheel can adjust the verticality of the belt. And also has Stepless Speed Governor, provides the smoothest energy output. The worktable can adjust the angle freely, and the belt adjustment wheel has a spring structure to automatically adjust the tightness, which can slide up and down without popping up. Specifications 锛?br />Material: metal Color: silver Rated voltage: DC 12 24V ,Noise: 75 85db No load speed: 4000 9000RPM (adjustable) No load temperature: 26鈩?45鈩?br />Belt size: 330 x 10mm / 13.0 x 0.4in (60/80/120/150/180/240/320/400/600/800 mesh锛?br />Machine size: 170 x 150 x115mm / 6.7 x 5.9 x 4.5in Machine weight: 1022g / 2.3lb Package list : 1 x Belt Sander 1 x Speed Control Power Supply 5 x Wrench 10 x Sand Belt Pls Kindly Notes: 1. Only the above list is included. The other products in the picture only show how they are used. 2. Due to manual measurement, please allow 1 3cm error and make sure you don't mind before ordering.