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Thanks for the above. Wasn't aware of the existence of torque sticks.
Just found out about the existence of Torque controlled impact wrenches.
https://www.milwaukeetool.com/Products/Power-Tools/Fastening/Impact-Wrenches/2769-20
Settable to get "you closer to the target torque", and to prevent overtightning
"Milwaukee 2769 Torque Modes
Sorry about the imperial units.
Obviously this would be quite a step up from using a nut runner, allowing something close to the target torque to be achieved without manual effort.
From a review:
"I like that the new Milwaukee Tool controlled torque impact has Mode 1 stepped down [vs the older 2683] even further than before. One-Key’s first setting for lugs used to be 80-130 ft-lbs, now they’re making it 40-75 ft-lbs. This makes it a must to break out the torque wrench and finish the job correctly. Now, it’s just getting the tools in the shops and training the staff."
It's not marketed as being able to achieve final torque without a torque wrench, but the below review of the similar milwaukee 2863 used it's setting #3 (80-130 ft-lb's).
20 nuts were torqued by various methods. The control was by a digital torque wrench to 100 ft-lb (135 Nm). Torque to Release the lug nuts with a torque wrench was then measured. The torque controlled impact driver showed good repeatability, as shown by the proximity of the red plot to the blue control plot below.
Reviewer suggests that they would trust the tool to "to install my lug nuts without being too loose or tight"
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