1.Lorry-mounted tool, can use multi-function. 2.Simple, reliable, the price is cheap. 1. Design:OEM available. 2. Material: steel. 3. Protection: Zn, KTL and so on.4. Function:Heat treatment available, high torque test required. modelsizespecificationsZL-B005S13mm-S16mmS13-S16*180 Socket wrench