These sheets are just barely able to fit on an ink jet printer that has a half-inch margin on each side. You may have to reduce the size to print the whole thing out on a sheet of paper.
These are tables that I use in my campaign. A standard critical hit chart is to double damage on a natural 20,
and determne randomly if a critical fumble hits another member of the party. I expanded both the critical hits
and the critical fumbles to make each more effective.