I refer of course to my Rigid Tools (oh the irony....) Job Max 3 Amp Multi-Tool. Needed to get a clean hole through a plaster ceiling. Really, really did not want to have to pull the ceiling and drywall it. Bought the corded model.
It did an amazing job. Grout removal blade through the plaster, then a Bosch 'cuts freaking anything' blade through the lath. Really clean cuts. I zip tied my shop vac hose so that the nozzle was about 8 inches away. Zero dust in the room.
