The Tekton 1/2 Inch Drive Split Beam Torque Wrench is accurate to -4% throughout its entire 40-250 foot-pound range. Each wrench is serialized and calibrated according to the ASME B107.300-2010 standard. The detailed test results are recorded on the included calibration certificate. Unlike other torque wrench designs, this wrench can be stored at any torque setting without losing accuracy. Features: • Accurate to -4% throughout the entire 40-250 ft.-lb. torque range • Each torque wrench is serialized and calibrated according to the ASME B107.300-2010 standard and the detailed test results are recorded on the included certificate • A smooth-turning thumbscrew makes it easy to set a precise torque value, while the teeth inside the flip-up cover lock that torque setting in place during use • Unlike other torque wrench designs, this wrench can be stored at any torque setting without losing accuracy • A scale on the body of the wrench allows for quick conversion from foot-pounds to newton-meters
