[Krawlin]

Do you own a router? If so, I suggest using that. Just clamp a piece of angle iron on the desired place to use as a fence/guide for the router. Not sure what kind of bit you would use, but I've seen a thread on here somewhere where the guy was making custom CF parts, using a router table and custom made guides for the parts, and it worked great. A router or wet tile saw is probably going to be your safest bet though, the router will make more dust though so be sure to wet everything down and wear a respirator.