a 1/4 hole in 1/4 plate needs 5 tons,,what sizes are u doing in that table leg? u can also figure out the length of lever u will need, charts and formulas on line ..if your plates are 5/16 or thicker, i think it will be more cost effective to just do the drilling..seeing how the 4 holes are in the same place, u could make up a bolt on holding fixture to locate the corner of the plate on drill press table,and use a quick acting toggle clamp, to hold plate down,while drilling one hole, then move plate around to drill other 3 holes one at a time,,small punch presses are really for sheet metal, not the thick stuff..

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