2 questionson refinishing metal and wood

[englishman_ca]

first best way to take pebbles of metal?
second filling small cracks,gouges etc in wood?
Please need good advice I don't mind working hard at it
Thanks
Rick
could you please PM answers,easier to keep track of
Thanks again

I'd like to help you with your project, but, not too sure as to what you are refering to with 'best way to take pebbles of metal'