TBH for bikes, does it matter? Stem clamps on carbon bars, maybe if you’re ham fisted. Seat clamps are the correct tightness when the dropper still works but the post doesn’t slip etc.
And I say that as the owner of several torque wrenches.
Norbar come with a certificate. Can’t beat that.
Even the cheapest and nastiest torque wrenches will come with some sort of calibration certificate. The question is how long do you trust it for. And the answer is either A) you don’t because the postie probably dropped it so you get it checked on site then handle it with cotton gloves until either your site procedures say get it checked or you think it needs calibrating. Or B) you assume it’s good forever until eventually you find that the bottom of a toolbox in a damp garage with the tension wound right upto 250Nm wasn’t the best place for it when it strips a bolt as the click had corroded.
@lunge yes, but I need to fit a BB at 35 – 50 Nm and the cassette and rotor lock rings at 40 Nm. As per the other thread, these will have to be adjusted down to account for antiseize or thread lock, but still way above the 24 Nm that things like the X-Tools one offer.
There’s a reason the shimano tool is about 10″ long and has sharp edges, just use that until they’re comfortably tight.
It’s not like torquing down a cylinder head or clutch plate where they have to be perfectly even as well as the correct torque.