The TriLink Saw Chain 5/32 in. Chainsaw Sharpening Files make it easy to keep the saw chain sharp and the saw cutting fast. These high precision spiral cut chainsaw files provide outstanding sharpness and long tool life. The aggressive spiral cut tooth design of these chainsaw files enables the user to make fast, score-free sharpening of the saw chain cutters. The chainsaw files can be used to sharpen both gas and electric saws. Made of hardened carbon steel, these chainsaw files are rust resistant.