Abstract: A method for making folding bicycle tools is disclosed. A semi-finished product is a bar and each distance between two opposite sides of the bar is equal and has two using ends and a working section arranged therebetween. Two transferring sections are respectively arranged between each using end and the working end. A distance Z1 between two sides of the transferring section is less than a distance Y1 between two sides of the working section. Two side surfaces of the working section is flatted to become a flatted surface respectively. Y1 is less than or equal to double of a height X of the working section after being flatted and Z1 is less than or equal to X. The working section is cut to form two finished products and each has an assembling end which provides the an assembling hole to pass through and formed on the corresponding flatted surface.

Abstract: A method for making a bit includes a step of preparing a bar of pre-set length, the bar having two lateral portions on two opposite sides thereof, and two engaging faces formed on each of the top and the bottom of the bar, the engaging faces being in contact with at least two face insides of a hexagonal hole of an accommodation tool, a distance X1 defined between the two engaging faces, a distance Y1 defined between the two lateral portions 11, X1?1.2 Y1; a step of forming each of two ends of the bar into a function end, a connection portion being formed between the two function ends, and a step of obtaining the bit. The bit is compact and light weight.

Abstract: A method for making a bicycle folding tool includes a step of preparing: preparing a solid bar which has a hexagonal cross section, a rectangular cross section or a circular cross section; a step of cutting and forming a hole: cutting the bar into sections of pre-set length to form a semi-finished tool, a hole being simultaneously formed in one end of the section; a step of forming a working end: forming a working end to the semi-finished product by peeling and milling, and a step of forming a connection end: forming a connection end with the hole located at the center of the connection end to form the folding tool.

Abstract: A screwdriver bit structure is disclosed and comprises a driving end, a connection end, and a neck portion. The driving end and the connection end are respectively extended from two ends of the neck portion outwardly. Two side portions are respectively formed at two sides of the connection end and two first abutting portions are respectively formed between the two side portions so that the two first abutting portions are respectively totally engaged at two opposite surfaces of a hexagonal hole of a tool waited for connection.

Abstract: A method for making a driving bit includes a step of preparing a bar; a step of rounding the pre-connection end; a step of forming a connection end; a step of forming a transition section, a step of forming a driving end, and a step of obtaining a driving bit. Surplus material is removed from the pre-connection end to form the connection end which includes two side faces and two contact faces which contacts a reception tool. The distance between the two contact faces is X, the distance between the two side faces is Y, and X?1.2Y. The driving bit made by the method has light weight and small volume.

Abstract: A handle of a hand tool includes a handle having a connection portion and a grip portion. The grip portion has two parallel side faces and each of the side faces has a width of X. Two protrusions are formed between the two side faces. Each of the two protrusions has a width of Y, wherein Y?¾X. The connection portion has a connection position formed at its distal end thereof to which a driving member is connected. The axis of the handle is parallel to the driving member. The connection position has a long axis and a short axis. The length of the long axis Z, wherein Z?½Y. The handle is easily gripped and save storage space.

Abstract: A hand tool bit includes a bit having a driving end and a connection end which is sized to be inserted into the hexagonal recess of a socket. The connection end has a first face and a second face formed on two opposite sides of the body of the bit, and a first contact portion and a second contact portion formed on the other two opposite sides of the body of the bit. The first and second contact portions contact two of the six sides of the hexagonal recess of the socket.

Abstract: A method for making bicycle folding tools includes a step of preparing: preparing a board with a pre-set length; a step of punching: punching the first end of the board to form a function end, and the board with the function end being a semi-finished product; a step of bending: bending the semi-finished product to form a connection end which has a hole defined therethrough, and a step of forming a final product: a final product being formed with the function end and the connection end on two ends thereof. The folding tools have consistent shape and quality so as to save space when assembling the folding tools into a bicycle folding tools pack. The folding tools are light in weight and compact.

Abstract: A method for making a folding tool includes a step of preparing a bar with a hexagonal cross section, a rectangular cross section or a circular cross section; a step of cutting the bar into a base with a pre-set length; a step of trimming two surfaces of a first end and a second end of the base to form a semi-finished product; a step of forming a working end at a first end of the semi-finished product by way of lathing and milling; a step of forming a connection end at a second end of the semi-finished product by way of milling, and a step of forming a hole through the connection end by way of drilling or milling.

Abstract: A method for manufacturing a driver bit with a flat head includes a step of preparing semi-finished product: the semi-finished product being a bar with equal distance between any two adjacent sides, the semi-finished product having an operation end and a connection end and a transition section connected between the operation end and the connection end, the distance between two opposite sides of the transition section being Z1, the distance between two opposite sides of the connection end being Y1, wherein Z1<Y1; a step of flatting: pressing the first and second sides of the connection end to form a first flattened side and a second flattened side, the connection end being flattened to have a height of, wherein Y1?2X, and Z1?X, and a step of forming a hole: a hole defined through the first and second flattened sides.

Abstract: A bicycle breaker assembly received in a folding tool unit includes a chain breaker having a body which has a first protrusion and a second protrusion respectively extending from two ends thereof, and a recess is defined in between the first and second protrusion. A push member threadedly extends through the first protrusion. A tire-removal member is pivotably connected to the second protrusion. The second protrusion has a groove, and a support member extends from the recess. The tire-removal member has a stop extending therefrom which contacts the body when the tire-removal member is pivoted relative to the second protrusion of the body.

Abstract: A hex key has a hexagonal L-shaped body that includes a longer leg and a shorter leg vertically extending from the longer leg. The diameter of the L-shaped body ranges between 2 mm and 10 mm. The length of the shorter leg is greater than or equal to 50 mm. The length of the longer leg is given by the formula 0.3L2?L1?0.5L2, where L1 represents the length of the shorter leg, and L2 represents the length of the longer leg.

Abstract: A method for producing a tool for use in a folding hand tool set includes the following steps. Firstly, a metallic rod is provided. Next, a working end and a shank portion are formed on opposite ends of the metallic rod. The shank portion has a regular polygonal cross-section. The working end has a maximum external diameter (Z) is smaller than a maximum external diameter (Y) of the shank portion. Then, the shank portion is flattened into a flat, generally oblong portion by a stamping press, wherein the flattened shank portion has a thickness (X) more than or equal to a half of the maximum external diameter (Y) of the original shank portion. And the thickness (X) of the flattened shank portion is greater than the maximum external diameter (Z) of the working end. Finally, a hole is punched in an end of the flattened shank portion opposite the working end to complete the tool.

Abstract: A manufacturing process of a foldable repairing tool bit includes a material preparing step, an unnecessary material removing step and a material bending step. Wherein, a stick with a designated length is prepared firstly, where one end of the stick is a bending portion, and another end of the stick is an embodying portion; and then, at least one side of the bending portion is partially removed so as to form a smooth surface thereof; finally, the bending portion are bent so as to form a tool bit with a pivoting hole. Under this arrangement, said tool bits are pivotally assembled in a tool base so as to form a foldable repairing tool set.

Abstract: An inflator head, which is adapted to be mounted on a cylinder, includes a casing and an adjusting valve. The casing is mounted on the cylinder. The casing has an opening at a front end and a channel in communication with the opening of the casing and an outlet of the cylinder. The adjusting valve has one end axially inserted into the opening of the casing. The adjusting valve has an axial hole therein and at least one inlet defined in an outer periphery thereof and communicating with the axial hole. The adjusting valve is movable between an open position in which the inlet communicates with a chamber of the cylinder to inflate a tire, and a close position in which the inlet is blocked from communicating with the chamber of the cylinder.

Abstract: An inflator head, which is adapted to be mounted on a cylinder, includes a casing and an adjusting valve. The casing is mounted on the cylinder. The casing has an opening at a front end and a channel in communication with the opening of the casing and an outlet of the cylinder. The adjusting valve has one end axially inserted into the opening of the casing. The adjusting valve has an axial hole therein and at least one inlet defined in an outer periphery thereof and communicating with the axial hole. The adjusting valve is movable between an open position in which the inlet communicates with a chamber of the cylinder to inflate a tire, and a close position in which the inlet is blocked from communicating with the chamber of the cylinder.

Abstract: A manufacturing process for a chain tool attached to a bicycle folding tool included the following steps: Material preparing step: a rod with a length is prepared. Manufacturing step: the rod is milled via a milling cutting step to form a chain fixing groove, a detaching portion, an axial groove and a screwing portion, the chain fixing groove having a retaining wall, the retaining wall being milled to form an arc notch, the screwing portion being threaded to form a threaded hole via a drilling and tapping step. Heat treatment step: after the manufacturing process, the rod is heat treated. Sheet metal part assembling step: a sheet metal part is assembled to the chain tool by at least one connecting part; therefore, the chain tool is attachable to the sheet metal part.