The angle isn't hard to eyeball. The torque wrenches are up to 4% off, so eyeballing it is close enough.When you have a torque value that says 108 ft/lbs +50 Degrees Torque to 108 then the 50 degrees is beyond that using a Torque setting angle gauge.
You can get them on Amazon, https://www.amazon.com/gp/product/B07G7ZHJN5/ref=ppx_yo_dt_b_asin_title_o01_s00?ie=UTF8&psc=1
I never owned one before.
All the torque tables for the JKs and the TJ I owned were just torque numbers like lower control arms at 125 ft/lbs etc.
So the JL adds a stretch to the bolts using this tool after your initial torque.
I have found loose bolts on all of my new JL's. Its highly recommended spending a few minutes with a torque wrench, especially on the critical suspension and steering components. Although not as critical some of the bolts holding the skid plates on were loose too.The sway bar links were too loose on my JL. Tightening those helped the steering.