W -Series Low Profile Hydraulic Torque Wrenches provide a superior strength to size ratio. Built for heavy-duty bolting and enduring durability, these powerful tools provide low total cost of ownership.  A low-profile torque wrench uses interchangeable cassettes and is the ideal choice where clearance around the nut is restricted (such as in the oil and gas industry). For working in these environments, W-Series drive units and cassettes offer the reassurance of ATEX certification to ensure they meet the necessary safety standards in potentially explosive environments.  Choose this W-Series Drive Unit and compatible cassettes for the ultimate in productivity, durability, reliability in challenging environments. With a product at this level, you can expect hassle-free ownership, superior quality, and extra features, such as quick-change cassettes.  Features Superior strength to size ratio provides easy access to difficult to reach applications without sacrificing endurance 30° rotation angle and rapid return stroke provide fast operation Tough manifold design with added safety feature for enhanced operator safety Fast release drive unit enables rapid exchange of cassettes, no tools required Quick and easy disassembly for maintenance without special tools Includes robust handles which mount on both sides, and the tops of cassettes to allow for extra maneuverability Available with optional enhanced tilt and swivel TSP300 manifold for horizontal and vertical maneuverability, with greater durability Drive unit compatible with W-Series and UltraSlim Cassettes Constant torque output provides accuracy of +/-3% across full stroke ATEX declared. All W-Series X-edition drive units are CE - ATEX declared.