Rotary grinding tool, that ISN'T as loud as a fire-station klaxon horn

Using Arduino General Electronics
9

DocStein99:
I do not throw anything away before taking it apart. Lately now everything dismantled is broken down sorted into boxes, and shelved.

I see a lot of boxes. :astonished:

DocStein99:
Using a rotary tool with a flexible shaft is like accepting a deal with the devil.

I have a proper one hanging in the garage. Mind you, have not actually used it (15 years ... Should try it out). It is however a proper one like (or is) the ones dentists used to use. I doubt it is particularly noisy or stiff to use.