Unless the sink is new, I don’t bother with a wrench. Cutoff wheel in a Dremel-deeply notch the retaining ring on an angle, split it with a screwdriver, and remove.
We’d manage. I’m not sure how, but we would manage.
Bwah? Now I’ve got something else to contribute next time there is a “things you really don’t understand” thread- handyman-speak.
A Dremel is some kind of tool, right? I take it from the context that the retaining ring is some part of a sink or garbage disposal?
Actually, the last time we did this (my sister’s 1950’s house) we ended up using a saws-all to get the thing off (no dremmel available). It was risky, but new sinks aren’t that expensive and we were sick of screwing with it. 
Ended up working fine.
Dremels are small hand-held electric tools, furnished with a variety of fittings for grinding, polishing, sanding, and so forth. As fans of the movie ‘Marathon Man’ will remember, one may also practice dentistry with them. Is it safe? :eek:
The fitting of which I was speaking is the reinforced cutoff wheel, which cuts a narrow slot in most any material, including fingers.
Sink drain baskets are secured with a cast metal lock ring, and after a few years, they are all but impossible to remove. It is easier to use the cutoff wheel, and taking care not to damage the sink, slot the lock ring almost all the way through, as the remaining metal will snap when a screwdriver is turned in the slot created by the cutoff wheel.
The Dremel cut-off wheel is possibly the most useful invention since the wheel (oh wait, it IS a wheel… Amazing!). I’ve used thousands of them over the last 30 years.
For the trivia buffs- When I bought my first Dremel (in High School), I mentioned it to my mother and she laughed - Demel mean Dream in Yiddish.
Especially fingers.