I have had various torque wrenches over the years from the old beam type to the one I have currently. I have never had any problems with the studs on any of my wheels and never have had it calibrated. Years ago folks used air wrenches to put tires on before disc brakes became standard and problems were not that frequent. But to answer your question directly I am sure you can get state of the art torque wrenches today but in my experiences it really does not matter if it is exactly 120 or 122.5 as long as they are all close. I always torque to 100 foot lbs.