Because the  thin cutting wheel cutting machine dust powder too please what the users can replace the abrasive cutter fast and clean (at least not too dusty pink) Saw relatively safe! What blade efficiency is not high cost, personally think that it is nonsense. You're not only saw one time, you can get a few more! Waterjet Cutting? If a small business, then you get a bit unrealistic! Gas cutting, speed quickly, but glitches too (iron oxide), not a good guarantee size! As for you that is not going to want to go dry blade safety, danger! Because high speed abrasive cutter was very up! If you really want to use the cutter, then proposed a security vacuum pump it, so affordable! But do not know I can not, but should be, too. Ann should each have a bigger problem.