The Norbar Professional Adjustable 'Mushroom' Head Torque Wrenches are fitted with Norbars Industrial style of ratchet. Using the principle of offset pawls, these ratchets feature a robust tooth pattern and a narrow engagement angle, meaning that the wrench is easy to use in tight spaces. They have a new ergonomic handle with a high proportion of soft-feel, high grip material. Both the handle material and lens resist all chemicals in common automotive, industrial and aviation use. There is a secure push/pull locking mechanism that is quick and intuitive to use and prevents accidental wrench adjustment. They are fitted with a large scale window and long scale length for great visibility and accurate setting. Unique on a torque wrench, the Timestrip gives a visual indication that the wrench is due for re-calibration. Every wrench is supplied with a declaration of conformance of ISO 6789:2017 and in a sturdy plastic case. Norbar Pro 400 Adjustable 'Mushroom' Head Torque Wrench 3/4in Drive 80-400Nm Part Number: 15006.Accuracy: 3%.Operates Between: 80-400Nm/60-300lbf ft. Square Size: 3/4in. Ratchet Teeth: 60.Ratchet Diameter: 51mm. Length: 686mm. Weight: 1.93kg. Norbar Pro 400 Adjustable Mushroom Head Torque Wrench 3/4In Drive 80-400Nm in Silver