STURDY ALUMINUM MATERIAL- This kind of chainsaw sharpener is made of high-quality aluminum material, which gives it the qualities of anti-ruse and scratch-proof. Moreover, the aluminum structure improves its strength and performance. WORKING LIGHT & PROTECTION- There is a working light mounted on the chain sharpener chainsaw for lighting while you are using it in a dark place. The anti-slid handle also helps hold the machine tightly for protection. 3000 RPM MOTOR- The motor of the chainsaw chain sharpener is a commercial motor of 3000 RPM. It will make sure that your chains will not be burned or soften mistakenly. TILTING VISE & GRINDING WHEELS- The tilting vise on the chainsaw sharpeners are suitable for semi-chisel & chisel style cutters. And the 5.5' large grinding wheels can help you sharpen the chain more efficiently. WIDE APPLICATION- The chainsaw electric sharpener is widely used in your house or your working fields to polish and sharpen your items