American Metal Treating has been a family-owned commercial heat-treating company since 1929. Located in Cleveland, the company specializes in tooth-by-tooth contour induction hardening. It offers unique induction hardening capabilities among commercial heat treaters and specializes in gears. Its specific capabilities include spur and helical gears up to 15 tons, face lengths up to 45 inches, bevel and internal gears, sprockets of any size, and shafts and pins. American Metal Treating uses computerized numerical-controlled equipment that includes Ajax coarse pitch hardening machines, external Natco submerged process machines, internal Natco submerged process machines and Cheston internal gear hardening machine.