W-Series Low Profile Hexagon Cassettes work with your compatible drive unit, giving you the access needed for hassle-free bolting in tight spaces. Robustly constructed from steel especially for heavy use and enduring durability, these robust cassettes are designed to ensure a low total cost of ownership. Fast release in the compatible drive units enable rapid exchange of cassettes - no tools required and no pins to lose!The optimum nose radius in each cassette offers the ideal strength to size ratio for restricted clearance applications. (For exceptionally tight spaces consider the Ultra Slim Cassettes). Constant torque output provides accuracy of ±3% across full stroke. ATEX declared. Calibration certificate included. All W-Series cassettes are CE-ATEX declared and are shipped complete with a calibration certificate.