●M5 Signal Port can be used a detection Signal that tools start and stop , the purpose is to record the number of locking screw  or detect whether screwloose

●Ventilation can start motor rotation, can increase the torque accuracy and increase efficiency, when the torque reaches the set value, the tool will automatically stop running, the air valve stops gas supply, M5 signal port will stop the signal.Re supply, you can restart the motor

●Torque adjustment easy, please follow the instructions

●Torsion ring to the right, increase torque, torque ring to the left, torsion decreases

●When the load reaches the preset torque value, the air motor will stop automatically

●Torque color ring is easy to set up and manage the torque

●In order to avoid influence the motor running,please drop lock tools in the tool's locking space

Note: the black hole for air intake, silver for the exhaust, if a mistake will affect the motor running