On Fri, 30 Oct 2020 11:12:49 +0000, Andy Burns wrote:

Those green plastic pot scourers seem to do it OK. Without
scratching
the surface. A wheel made of that to fit a power tool would be
great.

You can buy various grades of "scotch-brite" wheels/discs, e.g.

https://amazon.co.uk/dp/B07GXNF6GY

Ooo, they look interesting, thanks. Quite a selection of different
types and grades to choose from as well. Wonder if they'd be better
used with a random oribtal sander rather than drill?

Must admit to being a bit cagey using a mains powered tool in
combination with the required lubricating/debris removal water.

--
Cheers
Dave.