I have come to the conclusion that the size of the fastener is also a variable. All that 6" extension is is a 12" socket, right? That means every torque wrench is incorrect except if applied on the fastener size it was calibrated on, because you are measuring the torque on the axis of the bolt head. I suspect that they use a 1/2 or 9/16 as a standard, but somebodywith access to a calibrator can check the gizmo. It may well be just a 1/2" square drive orfice.

This means that your 24mm crank bolt is not torqued correctly, because it's roughly twice the size of the standard. It also means that you need a seperate torque wrench for each fastener size if you want the most accuracy possible. I become a greater fan of degree of rotation wrenches all the time...

One more "certainity" in this world exploded. I should have been ready for it - almost all the others are already gone poof.....

Not responsible for advice not taken...