A point to remember when using a torque wrench is that the specified torque should be measured when the fastener is moving. So turn until you have the required torque and then stop - that way you don't get a false reading because of dealing with the static friction. What you shouldn't do is get close to the required torque, stop and then apply more torque, what you'll likely see is that you can reach the required torque WITHOUT the nut turning, that's because you're working against the static drag.

For the above reason IMHO the break type torque wrenches are easier to use.


Peter