CO-Z Electric Chainsaw Chain Grinder Sharpener Made of durable cast aluminum with reinforced hinges that improve strength and performance Adjustable angle and large handle for easy operation and better control. The built-in work light and safety guards improve accuracy and provide superior protection. Tilting vise accommodates semi-chisel & chisel style cutters. Long lasting large grinding wheels: 1/8" & 3/16" (5.5" in diameter)