This 1/2″ square drive tool with ball locking function is interchangeable and compliant with DIN 3122 / ISO 3315 standards. It is manufactured from chrome alloy steel and chrome-plated. The tool is stable thanks to a maintenance-free sliding bearing with a secured stop. Length adjustment is convenient, easy, and fast—even one-handed—via a rocker switch. It can be locked in at five lengths: 410 mm, 465 mm, 520 mm, 575 mm, and 630 mm. It features a 2-component handle with an ergonomic ball shape for fatigue-free work and is resistant to oils, greases, brake fluids, and Skydrol.








