My son gave me a Milwaukee 2562 M12 from work they were trashing due to a broken charger. Looks like this:
Its an M12 with gobs of torque, maybe similar to the one
@dnschmidt mentioned earlier. Side by side, the CT861 makes around 100ftbs.
I don't own the Snap on, but I think these are 2
very different tools. The CT861's comparably low torque could make it particularly agile. Milwaukee seems to believe more torque is always better. Its got a slightly higher max rpm and it could be difficult to control. Mine has 3 speed settings on it which helps, but I don't have enough time with it to assess how usable that is in the real world.
I feel a little like the Milwaukee is a tool without a clear purpose. Its got the guts to do work on suspensions, but with a 3/8" anvil, can't realistically carry 100% of the sockets I use. Its very possible its really a stubby, mid torque, 1/2" gun with a 3/8" anvil. And I could see Milwaukee doing that.
Flip side, Snap on may have designed a 3/8" gun that produced enough torque to handle 90% of the fasteners we access with 3/8" drive.
Point is:
1) I'd be very careful about the comparison to the current much higher torque Milwaukee guns.
2) I don't feel there have been thoughtful enough reviews from actual mechanics on this subject.
3) More torque isn't always helpful.
Many here experienced this during the cordless impact gun space race a few years ago. Go back and read those GJ threads, where people here were trading in 500ftlb guns for 1000, then 1500ftlb guns. And many were talking about crank pulleys on cars they didn't own. At the end of the threads I recall, people were saying the monster guns were too heavy, tough on wrists, too big, and just too much tool.