→Used in measurement, calibration and verification for torque wrenches, torque screwdrivers or other appliance (torque wrenches) with torque measurement or control mechanism.
→Used for fastening bolts, nuts, screws or other similar components and to measure, control, calibrate the torque, torsion angle, torsion angle stiffness, etc.
Standard
→ISO1173 Assembly tools for screws and nuts; Drive ends for hand- and machine-operated screwdriver bits and connecting parts-dimensions; torque testing
→ISO6789 Assembly tools for screws and nuts；hand torque tools; requirements and test methods for design conformance testing; quality conformance testing and recalibration procedure; Assembly tools for screws and nuts- Adjustable wrenches
→DIN ISO 1711-1 Assembly tools for screws and nuts-Technical specifications-Part1:Hand-operated wrenches and sockets
→ISO 2936: 2014 Assembly tools for screws and nuts-Hexagon socket screw keys
→ISO 3317-2015 Assembly tools for screws and nuts-Square drive adaptor with hexagon or cylindrical flat drive, for power socket wrenches
→sleeve type: 6.3 series sleeve≤14mm;10 series sleeve≤22mm;12.5 series sleeve≤34mm; 20 series sleeve for class a≤34mm/ for class c≤36mm;A type (Normal type),Btype (lengthen type),class a, class c
