[fastfredracing]

Thing is , Im still tough . A few weekends ago, I spent an entire day hammer drilling 74 ,1/2 inch holes 6 inches deep into my concrete footer . I hammer drilled for an entire day /.
Sure, I had some discomfort afterwards, but nothing like what I am experiencing at work . I have a pretty good grasp on using impact tools, saws, and drills and stuff, spend a lifetime using them
I looked up specs last night,
My old IR 2135 air gun. A tick over 4 pounds weight, and 1200 ft pounds of torque.
MIlwaukee fuel . almost 16 pounds weight, and 1400 ft pounds of torque.
I'm betting it is mostly the weight causing me to hold it so tight in my hand.
Like Milt said, my older air gun, just feels like an extension of my arm . It is light and comfortable, and I hold it loosely in my hand, super easy to control and manuver .
The fuel impact, feels like I am wielding a concrete block at the end of my hand. It almost needs 2 hands to use it
I usually knock out State Inspections first thing in the morning . If I inspect 3 cars, that is 60 lug nuts off and back on .
My arms bother me using the milwaukee whether I am doing dually lug nuts, or Kia wheel bolts. Does not seem to matter .
I actually have a cheaper porter cable electric impact that I use a lot, and it does not bother me a bit, but it is not quite up to the task of blasting off lug nuts all day . It works itself to death, and battery life is short using it in this capacity . It is light and comfortable in my hand, but if you get a tight lug, it will just sit there, and hammer away for 30 seconds or so on each lug.
Im spoiled, with the Ir, or Milwaukee, you pull the trigger, and the bolt is off, instant