I'm trying to install a new muffler and have 2 real = stubborn fused bolts. what do listmembers like to use to get these $&^%'s = off. I have tried hacksaw and drilling but need something like a high speed dremel = with cutting and grinding attachments that can fit into tight places.... I'm = not sure how durable a dremel would be for this purpose. anyone have any good = tips for tools and techniques???