[Tainen]

I also use the Harbor Freight models, after talking to my Father in Law about it, a cummins master trainer (he trains all of the cummins mechanics around the states). He told me that getting your torque wrenches re-calibrated by professionals usually costs more than a new harbor freight - and usually is a crapshoot anyway, since you might get the wrench back in worse shape than you got it. He told me most all of the guys use HF torque wrenches and just replace them whenever they get out of spec, and it's still quite a lot cheaper than buying name brand torque wrenches. These are wear items, and it's pretty painful to replace a name brand torque wrench...