• The two processes of the traditional impact wrench and torque wrench are executed by one process. • Combination of high speed provisional tightening by air motor and high precision by manual torque wrench. • Easy torque adjustment with graduation. • Accuracy check by torque wrench tester. • LS-type has an added feature of a limit switch that detects missed tightening by connecting to CNA-4mk2 count checker. • Applicable to use in the EU region. Comply with calibration procedures of ISO6789 Type II Class A.