The Crescent 3/8 inch drive Torque Wrench offers a dependable, fast, and accurate way to tighten fasteners in automotive, agricultural, and commercial or industrial applications. The 45 tooth reversible ratcheting head make work easier in tight spaces. The torque wrench features an audible 'click' signal that can be both heard and felt that lets you know your target torque has been reached. A spring loaded adjustment collar is designed to lock in place and large laser etched markings on the main body scale and thimble scale in both Inch Pounds and Newton Meters make setting target torque simple and quick. The torque wrench is factory calibrated to +/- 4% for the 50-250 inch/pound range. This torque wrench is designed to be used in the clockwise direction only.