ACDelco 3/8” & 1/2" Heavy Duty Digital Torque Adapters with Buzzer and LED Flash Notification – ISO 6789 Standards with Certificate of Calibration (1/2” (14.8 to 147.6 ft-lbs.));

Turn your ratchet wrench into a digital torque wrench and tighten your bolts with complete accuracy. The ARM602-4 1/2-inch Digital Torque Adapter features an audible alert that buzzes once you’ve reach your setting and torques between 4 to 147.6 ft.-lbs. With three (3) mode settings, this little decide operates in both clockwise and counter-clockwise with an LCD display that shows N-m (or kg-cm, in-lb., ft-lb) measurements. Package includes one (1) digital torque adapter and two (2) CR2032 coin cell batteries.