<ul><li>Made in the USA</li><li>Radius corner design engages the flats of the fastener, providing up to 15% -20% more torque while reducing fastener rounding, enhancing the turning of worn fasteners</li><li>EYE-D™ markings optimize size visibility, also providing sae / metric differentiation</li><li>Unique socket retention method, cold form ball recess, provides consistent secure retention of the socket to the drive tool eliminating the possibility of either a loose fit or tight fit</li><li>Socket wall dimensions are optimized to provide strength while retaining access to restricted fasteners</li><li>Manufactured from high alloy steel</li></ul>