Stone Bridge: How to Build a Roman Arch Bridge : 12 Steps ...
3) Masonry chisels: (at least one 3' wide and one 1.5' wide) (10/ea) 4) A rotary hammer drill with 9/16 bit (for drilling holes used to split stone; I got mine at Harbor Freight for 80) 7) 3/4' Plywood, 1/4' plywood, 2x6 boards (100-150) 8) Plug and feathers (also called wedge and feather: by far the most specialty item, but available online.
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