I've used every kind of saw imaginable, skil saws jig saws scroll saws table saws, you name it. Two scared me. Chain saws, and we had a GIANT abrasive chop saw, used for cutting steel. It had a three FOOT abrasive blade. When that blade came apart (at least twice I can remember) it sounded like a plane crash, and except for the guard, would have killed the operator.