On Wed, 26 Aug 2020 16:10:58 GMT, JohnP wrote:

I like the sound of that rubber abrasive block - as a tool for occassional
use.


https://www.klingspor.co.uk/products...asives/sfk-655

I'd expect a coarser block (120 grit, maybe?) to do a sink in under an hour,
depending on how picky you are about getting it even in all the corners and
bits...


Thomas Prufer