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The Hubble Space Telescope (HST) tool box provides stowage of individual tools, tool boards and tool caddies required for maintenance of the telescope. The basic box design was revised from the LEASAT (U.S. Navy) equipment stowage container. It can be mounted to a base plate or back plate depending on the mission location requirements. A four-point latching system secured with pip pins is used to latch the tool box doors for launch. Various other latches are designed into the door panels and tool mounting locations for tool retention. The box consists of aluminum sides and base, a dividing wall and deep doors. Along three sides there are handrails by which STS-61 extravehicular activity (EVA) crew members can translate themselves or brace themselves when stowing and unstowing equipment.