M12 tools for car work?

[Kram]

I'm not a bit unsure about the m12 ratchets... Wondering if a cheap chinese one would, although being a different battery, actually be better performing.
The M12's look bulky and larger than the parkside ratchet, which is listed 54nm and 250rpm.

 

[Kram]

Yes but I’d still prefer 1/2 over 3/8 on the impact gun.

I'll likely go with 3/8 just as I know there are times a 1/2" socket wont fit.
Found this video interesting.

 

[Craig-SM]

I'll likely go with 3/8 just as I know there are times a 1/2" socket wont fit.
Found this video interesting.

Interesting but the socket weight I was referring to is mentioned at 1’50”. On a test bed with near identical socket weights on large hex bolts like he spoke on before doesn’t make any difference and comes down to the tools performance then.

Why the Milwaukee tools show a performance difference between anvil sizes is bizarre when the other tools don’t.