Gear ratio 25:1. Approximately 300kg safe working load. Cable drum holds approximately 14 metres of 5mm diameter steel cable. Winch is fitted with special pinned shaft to take W24-PWDA portable winch driver attachment. Worm-drive winches are self-locking and provide a much greater level of safety than ratchet type winches. This winch must be operated by an electric portable driver and driver attachment (see W24 and W24-PWDA).