The standard C series cover torque ranges between 20 in-lb to 250 ft-lb and 4 to 345Nm. The permanent laser etched micrometer adjustment scale is in both English (in-lb/ft-lb) and Metric (Nm) units for direct setting conversion.
Each torque wrench is calibrated, certified and exceeds the accuracy specified in ASME B107.14-2004. Factory calibration is performed on a torque standard traceable to the National Institute of Standards and Technology (NIST). Actual torque readings and individual serial numbers are included on all calibration certificates for 100% traceability