Size: 1/2 Inch Drive, Range: 25 to 250 ft. lbs. Dual scale measurement adjustments in both Inch-Pound and Newton meter. Audible click is generated when you’ve reached the desired torque setting. Patented torque adjusting lock/unlock collar. Internal torque mechanism is manufactured of high grade spring steel. Returning wrench to lowest setting after each job ensures accuracy and long life. Precision 41 tooth ratchet head offers greater torque control. Includes an instruction manual and a heavy duty storage case.