The Sealey AK624B is a calibrated micrometer torque wrench designed for professional precision tightening applications. This 1/2" square drive tool features a heat treated steel ratchet head that's fully hardened and tempered for long-term durability in workshop and mobile service environments. With a torque range of 27-204Nm (20-150lb.ft), this wrench is ideal for automotive mechanics, plant maintenance engineers and machine assembly work where accurate torque control is essential. The micrometer-type adjustment mechanism provides precise torque setting, with dual scale graduation in both Newton metres and pound-feet for versatility across different specifications. Every wrench is individually tested and supplied with a numbered calibration certificate, with tolerances meeting BS EN ISO 6789-1:2017 requirements. The electrodeposition finish provides corrosion resistance for reliable performance in demanding workshop conditions. A flip reverse ratchet mechanism enables both tightening and loosening operations, whilst the 465mm length offers good leverage without becoming unwieldy. The tool comes in a protective storage case to maintain calibration accuracy between uses. Features and Benefits: • Individually numbered calibration certificate ensures traceability and compliance • Dual scale graduation (Nm and lb.ft) for working with different specifications • Heat treated and hardened steel construction for professional durability • Flip reverse ratchet mechanism for both tightening and loosening • Supplied in storage case to protect calibration accuracy • Lifetime guarantee for long-term workshop investment Specifications: Brand: Premier Black Drive: 1/2"Sq Length: 465mm Nett Weight: 1.63kg Range: 27-204Nm(20-150lb.ft)