[sanddrag]

I have used a wood blade to cut aluminum before. While it is not recommended, it does work alright if you go slow and are careful. The cut will come out a bit rough and the blade will not last as long, but it does work. Just do not cut something thin with a wood blade. The general rule is you want to try to have at least 3 teeth of the blade in contact with the workpiece. If you don't go to a finer tooth blade for the thin material.