masonry bit would be more effective.

There is an annoying high pitched noise, so do it when most people are awake.

though I will have to look up the difference.


Rotary tool such as a Dremel
https://www.eternaltools.com/blog/how-to-drill-pebbles


Dremel or rotary tool

What RPM does the manufacturer recommend?

Ideally, a stand to turn it into a small drill press would be nice, and a small vise to keep the pebbles/stones stationary during drilling. Follow the drill bit maker's recommendations on speed and lubrication. Most important, wear eye protection.

Sound shouldn’t be a problem. You can’t watch tv and use it but... as long as you’re not working during “normal” hours you should be fine.

a cutting oil, or even water. it will help.