I'm new tp watching this Tool Shed topic, so apologize if this has been discussed before.
During my restoration on my Bolens Lawn Keeper, my son told me about this product.
Neither of us have a sandblaster, so he saw people at his workplace using abrasive wheels similar to these a HF (HF# 94017).
The work these inexpensive wheels will do is amazing - in my opinion a cheap substitute for a sand blaster. They cleanly remove paint without damaging the surface of the sheet metal, as well as rust-pitted surfaces. You will have to get out the grinding disks to smooth out heavily pitted surfaces (same thing for most sandblasters). After using these wheels, the surface will appear to have "grinding" marks, but the surface is not damaged in any way, and is ready for primer.
If you have tight bends or restricted access, the sandblaster is what you need.