Abstract: A foldable tool kit for positioning the tool, comprising a case, a plurality of tools and a plurality of orientation rings. The case includes two lateral sideboards and at least one pivot shaft interconnected the two sideboards. The tools pivotally connected to the pivot shaft to rotate thereabout; a lateral face of a pivot end of each tool is formed with at least one retaining portion. At least one lateral face of each orientation ring has at least one engaging portion. The orientation rings sleeves on the pivot shaft but fails to rotate, and are arranged among the tools. The retaining portion of each tool mates with the engaging portion of the adjacent orientation ring so as to block the relative movement between the tool and the orientation ring, whereby the tool is capable of positioning while in use.

Abstract: A bike tool assemblage includes a first tool assembly and a second tool assembly. The first tool assembly has at least one first tool pivoted thereto, and the first tool is capable of rotation in a first plane. The second tool assembly has at least one second tool pivoted thereto, and the second tool is capable of rotation in a second plane. The first and the second tool assemblies are detachable to each other, which are characterized in: the first and second planes are not paralleled to each other, while the first and second tool assemblies are in combination. Thus, the first and second tools rotate in different directions.

Abstract: The invention relates to a foldable tool set installed with a chain repair tool. The tool set has a housing and foldaway tools pivoted on the housing. The chain repair tool comprises a main body and an ejector pin screwed on top of the main body. The chain repair tool is pivoted on the tool set and can be folded within the tool set or lifted outward. In addition, an arm is included and one end of it is pivoted on one side of the chain repair tool to control movement of the chain repair tool. The chain repair tool and the arm are folded together in the housing. Accordingly, operation of disassembling and reassembling of chains can be conducted with this tool set without any other required tools.

Abstract: Complex tool kit including a foldable tool assembly and another tool assembly. The foldable tool assembly includes a main body having a passage on top face and several tools one end of which is pivotally connected with one end of the main body, The tools can be folded and collectively arranged under the main body. The other tool assembly includes an elongated flat board body, a chain-disassembling mechanism disposed on the board body for disassembling/assembling a chain and a clamping mechanism disposed on the board body. The clamping mechanism defines a clamping hole adjustable in size for driving a nut. The board body of the other tool assembly is detachably fitted into the passage of the main body and connected with the foldable tool assembly.

Abstract: Hammer loadable with different sizes of nails, including an adjustment member manually rotatably disposed on the hammerhead. A predetermined number of loading positions are formed on the adjustment member at intervals for loading a nail therein. The loading positions are spaced from the hammering end of the hammerhead by different distances. According to the length of the nail, the adjustment member can be turned to select one of the loading positions for loading the nail therein. The front end of the nail protrudes from the hammering end by a certain length, whereby the tip of the nail can be hammered into the surface of a work piece.

Abstract: Complex tool kit including a foldable tool assembly and another tool assembly. The foldable tool assembly includes a main body having a passage on top face and several tools one end of which is pivotally connected with one end of the main body, The tools can be folded and collectively arranged under the main body. The other tool assembly includes an elongated flat board body, a chain-disassembling mechanism disposed on the board body for disassembling/assembling a chain and a clamping mechanism disposed on the board body. The clamping mechanism defines a clamping hole adjustable in size for driving a nut. The board body of the other tool assembly is detachably fitted into the passage of the main body and connected with the foldable tool assembly.

Abstract: Screwdriver for operating self-tightening screw, including a grip; a striking mechanism disposed in the grip for providing a striking force; and a stem body slidably disposed in the grip. The top end of the stem body is drivingly engaged with the striking mechanism. The bottom end of the stem body serves to drive the self-tightening screw. In use, the screwdriver is pressed downward against the self-tightening screw. At this time, the stem body is slided into the grip to drivingly move the striking mechanism. The striking mechanism produces a striking force acting on the self-tightening screw so as to nail the self-tightening screw into a screwing position of a work piece. Then the screwdriver is used to screw the self-tightening screw into the work piece.

Abstract: Nailing tool capable of intially starting a connecting member with a tip, including: a stem body; a striking member, a top end of the striking member being formed with a cavity, the striking member being fitted in an axial tunnel of the stem body and slidable along the tunnel; a resilient member disposed between the striking member and the stem body, when not subject to external force, the resilient member keeping forcing the striking member upward; a pull member connected with the striking member for an operator's hand to operate so as to drive the striking member toward the bottom end of the stem body; and a press button pivotally connected with the stem body. When the, striking member is moved downward, the press button latches the striking member at a position ready for striking. When the press button is pressed, the striking member is unlatched and resiliently bounded by the resilient member toward the top end of the stem body.

Abstract: Nailing tool capable of previously nailing a connecting member with a tip, including: a stem body; a striking member, a top end of the striking member being formed with a cavity, the striking member being fitted in an axial tunnel of the stem body and slidable along the tunnel; a resilient member disposed between the striking member and the stem body, when not subject to external force, the resilient member keeping forcing the striking member upward; a pull member connected with the striking member for an operator's hand to operate so as to drive the striking member toward the bottom end of the stem body; and a press button pivotally connected with the stem body. When the striking member is moved downward, the press button latches the striking member at a position ready for striking. When the press button is pressed, the striking member is unlatched and resiliently bounded by the resilient member toward the top end of the stem body.

Abstract: Clamp for screwed fastening member, including: a main body formed with an internal axial passage; a rod body connected with the main body; two clamping members each having a bottom clamping end, the clamping members being pivotally disposed on the main body and movable to open or close the clamping ends thereof; and a predetermined number of pressing member disposed between the clamping members and the main body for forcedly pressing the clamping members and making the clamping ends thereof extend into the passage and close to clamp an article. A screwed fastening member can be positioned in the main body and clamped by the clamping members, whereby the clamp can be rotated to drive and screw the screwed fastening member.

Abstract: The present invention relates to a screwdriver having expanding and folding action. The inside of its handle has a duct of the axial direction, a screw rod body penetrating the duct to slide back and forth, so as to jut out of the handle for a predetermined length, or to be received in the handle; a retaining device disposed in the handle and retains the rod body so as to cause the shank to be retained and located at a predetermined protruded length; the retaining device can be operated and controlled by a human hand to relieve the shank of the state of being retained.