When I started (before I aborted) the project on the old Mark Twain hull (that I ended up cutting up and scrapping due to lots of damage), I bought a cheap 4" angle grinder at Cummins. <br /><br />That thing wasn't worth the $9 I spent on it. It didn't have any guts, and overheated (to the point of smoking) easily. <br /><br />So I'm looking for a DECENT grinder that's not going to cost me an arm and a leg (why spend $100 on a grinder that's gunna end up full of fiberglass dust?!?!). <br /><br />Are there any middle of the road grinders?<br /><br />Is the harbor freight grinder any better?