UG-21MM36 Apex 21mm 6-Point u-Guard Impact Socket, 5/8” Square Drive, Overall Length 3.530” covering is made of a thermo plastic urethane (TPU elastomer) which cushions against costly incidental side impacts. It offers the lowest sustained coefficient of friction for maximum tool efficiency. It is also non-removable for tamper resistance. The UG-21MM36 Apex 21mm 6-Point u-Guard Impact Socket, 5/8” Square Drive, Overall Length 3.530” provides a protective barrier between genuine Apex fastener tools and your finely finished workpiece. The free-spinning design provides maximum protection for polished and highly sensitive surfaces.

With UG-21MM36 Apex 21mm 6-Point u-Guard Impact Socket, 5/8” Square Drive, Overall Length 3.530” you get the proven Apex fastener tool fit and performance plus the best protection available against marring and in-system damage. u-Guard is your guard against the potential hazards caused by rotational friction. UG-21MM36 Apex 21mm 6-Point u-Guard Impact Socket, 5/8” Square Drive, Overall Length 3.530” are made from only tool grade steel then heat treated using our proprietary process for the proper hardness based on the application. Each UG-21MM36 Apex 21mm 6-Point u-Guard Impact Socket, 5/8” Square Drive, Overall Length 3.530” is then machined for a precision fit that exceeds industry standards.