We suggest you purchase at least one razor saw with your first kit. It will make your building time much more enjoyable (or at least less miserable). Purchase a miter box for use with a razor saw. Do not use your razor saws to cut metal no matter what the manufacturer says. The blade will dull very quickly. A coping saw may not see much use but you might want to keep it around for those times when it is the only tool that will get the job done.