These TT Torque Screwdrivers from Norbar are a robust, accurate and high-quality range of tools suited for professional use. Available with a display or as a Production Type (P-Type) model, each product possesses a torque lock to prevent accidental adjustment and is supplied with a 1/4" hexagon bit holder designed using a 4mm hexagon stem. Features and Benefits Easy torque adjustment Tool has a 'slip' feature that alerts the user as to when the desired torque has been reached Comfortable and robust handle that improves grip and resistance to slippage Both P-Type and conventional adjustable models are available to purchase (models 13856, 13857 and 13858 are all P-Type products) Typical Applications Automotive DIY Plumbing Engineering Construction Standards Conforms to ISO 6789-1:2017 Notes Products NBD5553350N, NBD5553350Q and NBD5553350S are all Production or 'P' Type models which come without an adjustable torque scale to prevent unauthorised torque adjustment. Torque