General description A set of 3 extension bars with spring-loaded universal joints designed for easy fitting onto sockets, providing access to fasteners in hard-to-reach areas. Technical specifications Extension lengths: 152mm, 203mm, and 305mm Drive size: 3/8''D Material: Chrome vanadium with a polished finish Usage Ideal for use on difficult access fasteners, such as those found in engine bays and under dashboards Spring-loaded design helps maintain joint integrity over time Other information A 1/4''D set is also available (Part No. 8495)