Well one will do big pipe and one won’t.Sorry, meant the tools themselves. And yes, the M18 will do up to 4" copper, M12 up to 1.25". Just having a hard time understanding the price difference (comparing bare tools).
You guys don’t filter your drinking water ?I have the Ridgid 'compact' sets and a good friend/colleague has the Milwaukee M12.
We have worked together a lot and swapped tools as we work and the 12V does just fine for daily driving up to 1".
I have the Ridgid add-on kit for close quarters and frankly, I wouldn't want to be doing work without that kit also. I do not know if you can swap brands of heads but suspect not.
For schools, commercial and multi story, just the lack of dealing with flux residue/taste makes it indispensable.
Cost is not even slightly a concern because it is so fast to press and go.
I have nothing against the Navien product but rather the way their company handled troubleshooting a heater with a known defect to them without checking that possible issue first. They put these people through two weeks of inconsistent hot water and send part after part that passed all their tests......We have incredible water here in the prime S.F. Bay area, but I still use a filter. Most around here have the naive joke of onboard fridge filter and still the water tastes good.
Really, since we have chloramine is hard or impossible to filter with simple activated charcoal.
Flux will trash a point of use filter pretty well won't it?
Twowax, I read about your bad Navien experience.
I have just the opposite experience and only install Navien, not that other brands are not fine, I just decided to specialize in what I still find to be a great product.
Though, I have to say, that they have blown the internal check valve design and most need replacement after three years on homes with external recirculation.
Likely, failure cause: chloramine damage of the tiny o-ring making it stick.