Features and Benefits:The Norbar wrench retains the original �Industrial� wrench�s robustness and clear torque signal and improves on the scale for more accurate setting. Can be split into two parts for easy storage and economic shipping. Removal of calibrated nuts reduces calibration expense. Quick and easy torque adjustments. Operator handle designed to �guide� the technicians hand into the proper position. Declaration of Conformance meets ISO 6789-1:2017 requirements. Contact Ken-Tool for recalibration requirements and instructions.