Well I picked up one of the 3/8" Earthquake impact wrenches and I am pretty impressed with the look and feel of it, but I still need to throw a fitting on it and test it. I used the 20% off coupon so in total it was $67 and some change. To me it identical, short of the air inlet/handle end and the textured finish/rubber boot. I did take the boot off and the unit is identical to the IR212, except where the IR's had IR cast into it, the Earthquake has a circle about 3/4" in diameter about 1/16" deep. Which in knowing the modularity of die cast dies, this is a standard insert format, which would allow the die caster to put a IR insert into it. All and all this thing is identical to IR I know I'm stepping out on the ledge here, but I would not hesitate to think this thing is either made in the same factory as the IR stuff or it is made in the same factory IR has their stuff made for them at.
TheGrooveking