Abstract: A hammer structure includes a hammer body, at least one hitting block, a compression spring, and a shaft. The hammer body has a radial through hole. The hitting block includes a mounting portion having an accommodating hole. The compression spring is accommodated in the accommodating hole. The shaft is inserted through the compression spring so that it can be elastically extended and retracted via the compression spring. The mounting portion of the hitting block is screwed to the end of the hammer body. The shaft counteracts an elastic force of the compression spring to be partially engaged in the radial through hole. The hammer structure can prevent the hitting block screwed to a mounting groove of the hammer body from being loosened due to strong impact and vibration in the hitting process, so as to fix the hitting block and avoid damage effectively.

Abstract: A tool handle type tool box, which includes a first cover shell, which has a connector at one end and hexagonal coupling holes formed in the connector for the mounting of a tool bit adapter to hold a tool bit for working, a second cover shell, which forms with the first cover shell a grip and has a tool bit tray detachably set therein for holding tool bits and two C-shaped coupling rings disposed at one end and pivotally coupled to the connector of the first cover shell.

Abstract: A toolbox, which includes a box body, a box cover pivotally connected to the box body with a shaft and two pivot bolts, and a plurality of tool holders coupled to one another and pivotally supported on the shaft and turnable with the box cover out of the box body one after another into a spread-out status like the action of a fan when opening the box cover from the box body.