The ACDelco1/2” Digital Angle Torque Wrench, No. ARM303-4A-340, built to provide precise torque and angle settings for today's vehicles, is accurate to +/–2 percent.This Digital Torque Wrench offers easy-to-use functions, such as vibration and buzzer alarm, LED flashing and color-coded lights indicating over/under torque. This ARM303-4A-340 also features: a torque setting range of 12.5 ft/lbs to 250.7 ft/lbs, CW accuracy of +/-1.5 percent, CCW accuracy of +/- 2.5 percent, a 720-degree maximum angle measure, 30 data sets of memory capacity, measurements in Nm, cm/kg, ft/lbs and in/lbs, a 72 fine gear tooth mechanism, a backlit digital LCD display, a metal carrying case and more. Two AA batteries are included for a 110-hour continuous run-time.