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.
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