STANLEY® Tool Sets, Sockets & Wrenches exceed the American National Standards Institute (ANSI) specifications. STANLEY sockets feature the proprietary Max-Drive™ design, a unique radius corner design which provides 15 percent more torque, making it easy to tighten fasteners and simplifies the turning of rounded corners. STANLEY sockets are manufactured worldwide with heat treated high carbon steel for performance. STANLEY Ratchets and accessories are designed to meet or exceed ANSI specifications, and all are forged from high-quality steel and finished in high-polish chrome.