The Sealey STW904 is a professional 1/2" square drive calibrated micrometer torque wrench designed for precise fastening applications across automotive, engineering and maintenance work. This precision tool features a flip reverse Chrome Vanadium steel ratchet head with a smooth action mechanism, providing reliable operation when working with critical fasteners that require accurate torque settings. Calibrated to BS EN ISO 6789-1:2017 standards, this torque wrench offers ±4% accuracy across its 40-220Nm (29.5-162.4lb.ft) range. Each wrench is individually tested and supplied with a numbered test certificate, providing traceability and confidence for professional applications where documented calibration is essential. The dual scale graduation in both Nm and lb.ft allows you to work with specifications in either measurement system. The aluminium knurled handle delivers comfortable grip and precise control during torque application, whilst the 520mm overall length provides appropriate leverage for the tool's torque range. Ideal for engine work, suspension components, wheel fastening and general mechanical assembly tasks where accurate torque values are specified, this wrench helps prevent over-tightening damage and ensures fasteners are secured to manufacturer specifications. Features and Benefits: • Flip reverse ratchet mechanism for working in both clockwise and anticlockwise directions • Chrome Vanadium steel construction for long-term durability • Individually numbered calibration certificate for full traceability • Dual Nm and lb.ft scale for versatile application use • Supplied in protective EVA tray for organised storage • Lifetime guarantee for professional peace of mind Specifications: Brand: Premier Drive: 1/2"Sq Drive Length: 520mm Nett Weight: 1.29kg Range: 40-220Nm (29.5-162.4lb.ft)

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