I've found 40, 60 or 100 grit flap discs on an angle grinder works best for getting anything clean - and if you save the well worn finer grit ones, they do real good on finish smoothing of welds and even polishing scratched aluminum

Bill


Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics