The BRILLIANT TOOLS telescopic articulated handle BT022401 has a 1/2" (12.5 mm) square drive, manufactured according to DIN 3120 / ISO 1174. It is designed for the use of sockets and connecting pieces with square drive according to DIN 3120 / ISO 1174 and ball catching groove. The telescope shaft can be locked into place by engaging the ring lock in 5 positions so the length of the articulated handle can be variably adjusted within the range of 45 – 61 cm. This makes it ideal for hard-to-reach places and protects the ratchet or torque wrench from overloading. The 2-component handle is equipped with a hanging hole. The surface is matt finish chrome-plated.