[algiorda]

I use Loctite Naval Jelly. Just brush it on, let it sit, and rinse it off and the rust is gone. You can then either polish, sand, paint, whatever.

I used this on an old drum set which had rusted parts and it came out looking like new.

https://www.walmart.com/ip/Osi-Sealants-1381191-8OZ-Naval-Jelly-Rust-Dissolver/21284588?wmlspartner=wlpa&selectedSellerId=0&adid=22222222227016785676&wl0=&wl1=g&wl2=c&wl3=51796572551&wl4=pla-83199736631&wl5=9012055&wl6=&wl7=&wl8=&wl9=pla&wl10=8175035&wl11=online&wl12=21284588&wl13=&veh=sem