1/2-Inch Digital Torque Wrench(3.8-250.8Ft.Lb/5.1-340Nm) ±1% Accuracy Digital To
【Overload Protection (Vibration, Buzzer, Flashing)】: We reach our preset torque value when using adigital torque wrench in daily life, the wrench will have overload protection. After releasing the force, the displayed value is zero.