<ul><li>Direct Torque Technology helps prevent rounding of fasteners</li><br /><li>Knurled Control Ring for added grip when handling the socket</li><br /><li>Chamfered open end for easier engagement of fasteners</li><br /><li>Hard Stamped markings to prevent loss of identification over time</li><br /><li>Full Polish Chrome Vanadium finish helps prevent chipping and flaking under toughest environments</li></ul>