Description: Converts any ratchet wrench into a precision torque wrench Accurate calibration device for existing digital and analog torque wrenches Standard functions: torque setting, measurement setting, mode setting LCD display shows Nm (or kg-m, ft-lb) measurements The same function with digital torque wrench display, fully functional, small portable Widely used in machinery, aviation, railway, maintenance, inspection, tire pressure measurement etc. Specification: Material: Steel Accuracy: +/-2% Torque Unit: (Nm.Lb-ft.kg-m) Mode: Trace/Peak Battery: 2 x AAA(Not Include) Length: 75mm Adapter: 1/2'' to 3/8'' and 1/2'' to 1/4'' Torque Range: 0.3-30Nm, 1/4'' Drive Torque Range: 10-200Nm, 1/2'' Drive Torque Range: 2-200Nm, 1/2'' Drive Torque Range: 17-340Nm, 1/2'' Drive Package Includes: 1 x Digital Torque Wrench Note: Due to the light and screen difference, the item's color may be slightly different from the pictures. Please allow 1-3mm differences due to manual measurement.