On Tuesday, 20 December 2016 22:58:30 UTC, Mike Perkins wrote:
Having never used these before and having to de-rust a large steel plate
with modest pits, what is the most suitable grit size I should use?

This is for a 4.5" / 115mm angle grinder.

I also got the impression the finer grit sized wheels last longer?

Can anyone assist with pros and cons?


Be sure to wear goggles BTW.
Really essential.