Apex u-Guard 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. UG-EX-503 Apex u-Guard Extension 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.

UG-EX-503 Apex u-Guard Extension have hex tolerances that are on average 48% tighter than DIN and 35% tighter than ANSI requirements. With Apex you are assured of an exact, sure fit. All Apex sockets have the tightest tolerances for straightness and concentricity in the industry.

With UG-EX-503 Apex u-Guard Extension 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.