The 19 mm locking flex ratcheting combination wrench goes where other wrenches can't with the flex feature and speeds through tasks with its ratcheting power. The Craftsman 19 mm locking flex ratcheting combination wrench has a slimmer profile than a socket wrench， letting you slip it into tighter spaces. The box end's 12 points of contact grip a variety fasteners securely. Made of tough alloy steel with a protective full polish finish.