Abstract: In the operation of hole punching apparatus, a method of changing punched hole formats in paper, for loose leaf binder pages or the like, using cooperating rollers for the male punches and female die members having the various formats embodied therein, so that after the male punches are projected into the female die members for any one selected format for achieving alignment or registration therebetween, this alignment for any other subsequent format does not have to be repeated and only the punches placed in mounting openings on the male punch roller for the subsequent format; the female die members being no problem because they do not, without a cooperating male punch, cause punched holes in the paper.