0 032 34 to 0 078 34 it has been found that blades of different desired widths may be easily formed simply by laminating together the desired number of blades such as by welding together two 0 012 34 layers are laminated together as shown in fig4 with sides 56 39 adjoining or affixed to one another however the blade is modified in fig4 in that the leading edges 54 39 of the blade are split and sprung or flared apart to a spacing of approximately 1 8 34 in the modified form the blade cuts efficiently in desired different widths due to the spring tension exerted against the edge of the slot by the leading ends 54 39 the releasable clamping screw 70 as described will accommodate increases in thickness of the blade and the corresponding slot 45 to 48 for a given width blade is advanced into position simply by rotating the anvil 40 to advance the desired slot into alignment with the blade 42 however in the modified form of blade shown in fig4 the leading end of the blade is flared apart to provide efficient cutting in slots of various widths as illustrated in fig2 the straight edge 57 of the blade is disposed in facing relation to the path of paper.