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.

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.

A processes of manufacturing wrenches is provided with preparing a cylinder of raw material; cutting the cylinder of raw material into cylindrical first half-finished products; increasing volumes of two one ends of each first half-finished product 10-18% by compressing to form a second half-finished product having two spheres at two ends respectively; pressing each sphere to form top and bottom flats on the ends of the second half-finished product respectively; sintering the second half-finished product; placing the second half-finished product in a die; forging the second half-finished product to form a third half-finished product; and punching the third half-finished product to form a finished wrench having an open end and a box end.

A processes of manufacturing wrenches is provided with preparing a cylinder of raw material; cutting the cylinder of raw material into cylindrical first half-finished products; increasing volumes of two one ends of each first half-finished product 10-18% by compressing to form a second half-finished product having two spheres at two ends respectively; pressing each sphere to form top and bottom flats on the ends of the second half-finished product respectively; sintering the second half-finished product; placing the second half-finished product in a die; forging the second half-finished product to form a third half-finished product; and punching the third half-finished product to form a finished wrench having an open end and a box end.