Triple Square Socket Sets

A triple square socket set is also known as an 'XZN socket set' and contains an array of sockets that are designed for use on triple square fasteners, which are characterised by a 12-point star shaped pattern on the centre of their head.

Triple square sockets are designed to be able to pass high levels of torque through a fastener, should be used with a ratchet, torque wrench or similar hand tool and are popular in the aviation and automotive sectors.