Some consider it blasphemy but I use a 14 TPI up to .040" then switch to a 7 TPI for thicker. Harbor Fright. Same blade since I started. It cuts fast which means less heat, less loading a d conversely, longer life. It does leave tooling marks so cut outside the line and sand to final dimension.
DO NOT skimp on the blade, though. That blade makes all the difference. I use Lenox brand and have always been satisfied...
Please explain for those with limited experiences.
TIA,
Mike
Been using the same Craftsman 14” three wheeler for over twenty years.
Tried all the different blades but I have found the best blades out there for aluminum and longer lasting than any other blades is the “ Super Cuts Three Wheeler Blades” with 24 teeth her inch. They cut aluminum like butter and don’t load up. You can find them on EBay.