Myth that socket extensions change torque wrench readings

Bigger problem is the torque wrench calibration. Is the torque setting backed off to zero after every use? Has the torque wrench been dropped?

In the military, extensions were not a major concern. Calibration was a big deal. Every batch we sent off for calibration would have at least one problem torque wrench. No idea how much calibration would cost. Always return the torque wrench to Zero to relax the spring.