Feature:
1. Perfect For Easy Torque Calibration -- Use with a 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 the adapter for easy torque calculations.
2. 3/8" D x Bi Hex Profile, Length range: 65mm - 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.
3. No Damage -- Design features radius edges which will avoid scratch and other damage.
4. Heavy Duty -- Box end wall thickness is specially engineered to provide strength while still allowing ample room for access to reach difficult fasteners.
5. Long Service Life -- Larger sizes feature thicker construction for strength; Manufactured from fully polished chrome vanadium, precision-forged, and heat treated for optimum strength and durability.
