FIRSTINFO F3451A-10 pcs Metric 12-Point Box End Torque Adapter Extension Set, 3/8-inch Drive Chrome Vanadium Steel Construction- EVA Foam Tray + Carrying Case

【Perfect For Easy Torque Calibration 】Use with torque wrench for easy torque calibrations. Adapters measure 2 inch from the center of the square drive to the center of the adapter opening. Center-to-center length on adapter for easy torque calculations, and adjustment due to the added length and leverage. 【Specification】Length range: 65mm to 70mm- 3/8” Drive, 10 pcs metric set includes 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm; 12-point box end allows for fine indexing, helping to improve speed and access. Fits 4, 6 and 12 point fasteners. 【Easy to Reach】Box end thin profile wall thickness is specially engineered to provide strength while still allowing ample room for access to reach difficult fasteners. 【No Damage】Designed with features radius edges which will avoid scratch and other damages. Larger sizes feature thicker construction for strength. Work with your torque wrench or even a breaker bar to correctly torque fasteners located in hard-to-reach places. 【Taiwan Design & Manufacture】Manufactured from fully polished chrome vanadium, precision-forged and heat treated for optimum strength and durability. We provide you quality assurance tools with 12+18 months after-sales warranty (18 months warranty by the register). Help you to achieve a satisfactory shopping experience.