Ok, sorry to start another china-USA debate its alittle deeper than that. I recently was in an "emergency" situtation (aka out of the shop lol) and tried to use a new pair of 10in curved jaw vice grips (china?). Anyway, the 3/8 bolt wouldnt budge but it managed to strip the teeth off the plier. Honestly, the small amount of torque i applied shouldnt have done that considering the jaws of my rigid pipe wrench are much stronger with even greater torque. My question to all is, since i never had petersen/american tool vise grips before, are the irwin ones just poor quality? Like i said, I have nothing to compare to except rigid pipe wrenches.