???? When storing a torque wrench for an extended period of time, users should always wind it down to the minimum scale setting and never to zero. [Precision at Its Finest] Introducing our High Accuracy heavy-duty Torque Wrench, the ultimate tool for precise operations! Reversible 24 teeth, With a 3/4 drive and a range of 100-600ft.lb / 135-815Nm, this project is built for perfection. [Certified Excellence] We take accuracy seriously! Each torque wrench undergoes rigorous +/-3% in-factory calibration and boasts an impressive accuracy of up to +/-4% clockwise. It's a certified pro, adhering to ASME standards, and even comes with a calibration certificate for your peace of mind. [No More Guesswork] Say goodbye to over-tightening headaches! This torque wrench features a clearly engraved dual-range scale, a heavy-duty cam, and pawl mechanism, and a satisfying audible click that you can feel. It's the ultimate recipe to eliminate guesswork and ensure every fastener is tightened just right. [Built to Endure] We believe in durability without compromise. The all-steel construction of this torque wrench guarantees rugged toughness. Its nickel chrome-plated alloy steel shaft and robust spring steel components are designed to stand the test of time, handling any challenge that comes its way. [Comfort Convenience] Get ready for a seamless experience with our torque wrench. The detailed straight knurling on the handle ensures a firm grip and optimal control, allowing for effortless operations and reduced fatigue. Plus, it comes with a durable blow-molded case for easy storage and portability, making it a must-have on the heavy torque range!! [For Pros and DIYers Alike] Whether you're a seasoned mechanic or a weekend warrior, this certified torque wrench is your go-to companion for accurately tightening bolts, nuts, and fasteners. Perfect for auto and tightening tough truck lugs, repairs, and any project that demands precision and professionalism.