1/2-Inch Drive Micrometer Torque Wrench 50-250 Ft/Lbs 70-340 Nm. Audible signal alerts you when target torque is reached. Clockwise direction marking on shaft simplifies calibration. Reversible 45-tooth round ratcheting head makes working in tight spaces easier and faster. Slide back adjustment collar lets you set target torque quickly. No-Slip hand grip for comfort and quick adjustment. Offers a dependable, fast, and accurate way to tighten fasteners in automotive, agricultural, and commercial/industrial applications. Reversible ratcheting heads make work easier in tight spaces and an audible signal lets you know your target torque has been reached. A slide-back adjustment collar design and large laser-etched markings make setting target torque simple and Quick.