The question should have been, how does Dr.Tom use a wrench in drum building rather than In what way is a wrench used during the djembe building process? All the newbs will be hitting the hardware shop as we speak.
Please explain how the wrench would balance the rings.
Oh yea, We have to prove our theories on the hypothetical question now do we? Some quiz! And again no prize for the winner, but hey you are a generous poster so I'll try my best.
Ok so, i'm presuming that photo you took is of the tool at work, and maybe i'm wrong but that is not relevant at the moment.
So your after doing your wet pull and you notice the ring is slightly high on one side and you wish to lower that ring to keep your patient's mommy happy.
Instead of getting your pulling bar and vice grips back out you seek out your wrench
You get the wrench and put it under one vert and then twist the wrench 360 to tighten the vert and hopefully move the rings down, plus another 90 so it is then inline with the original vert and lock the teeth of the wrench in the crown loops so it won't rotate and pop back out.
using the twisting itself as the pulling force.
Just read this and that's what i was describing above.
Pretty implausible but sure at least I tried to explain my guess.
I'm lucky to have hair in my hair Kid. No need to get personal.
It's all down hill once you start getting defensive about your hair line.
Some people like carving, some people like metal work, some people like rope wrap, some people like wrenches.