All metal components are forged from superior quality Chrome Vanadium steel High torque 72 tooth twin pawl ratcheting system exceeds ANSI standards for torque 5-Degree maximum movement between each engagement of teeth Push button quick release feature holds sockets on securely until ready to release Comfortable ergonomic handle design with anti-slip strips improves gripping power and reduces operator fatigue Spinner ring for use in areas with restricted space Convenient hanging hole Patented offset ratchet handle offers unique safety features, reduces knuckle damage and improves socket positioning Repair kits available