well im currently doing some work on my 98 dak, and im tryin to get rid of some rusted areas where the paint has chipped, and what not, but anyways have any of yall used a portable or hand held type sand blasting gun, if so how well do they work? i can get em cheap from habor freight, b/c i only expect to use it to take some rust of the frame and rad. core support before i put the front end back together, so thanks in advance any other ideas are welcome