I have the Blue colored cornwell 1/2" rated at 1200 breakaway. been using it daily for 6 years now. never once has given me a single problem. Has even gotten stuck crank bolts out that a fellow tech's snap-on gun couldn't (also rated at 1200lbs but twice the weight). You can get the same gun through napa, its just labeled differently. I think they call it Torque Dominator. Others I work with have gotten this gun after the Cornwell guy went out of business in our area and they couldn't get the cornwell labeled one. Here is whats on the website...
Lightest & Most Powerful 1/2" Drive Available, Twin-Hammer Supplies 1,200 ft lbs Breakaway & 800 ft lbs Maximum Applied Torque, Redesigned w/ Smaller Nose Cone Is Ideal For Working In Tight Areas, Variable Speed Trigger Provides Precise Control, all why weighing only four pounds. Give this tool a try and it will change your world. Run into your nearest NAPA Auto Parts and ask for the Torque Dominator, part number NPT 6-1123.