"Oregon 12 Pack Chainsaw File Pack 7/32"" # 70502 Works On All Chainsaw Models With 3/8 And .404 Pitch Chains" Swiss double-cut file design with precision cutting-tooth and fewer teeth per inch than competitive files Precision center less grind, Uniform file diameter and tooth height Compatible with the following Oregon Chain types: 27A,68JX/LX,72AP,72-73-75DP,72-73-75V,72-73-75JGX/JPX/LPX and 58-59L/J Tang length is uniform, no burrs nor sharp edges State-of-the-art manufacturing processes; uniform, optimum hardening, high-quality finishing including sandblasting and demagnetizing