Hasn’t been tried out yet, it’s to torque retaining nut on Syncro trans shaft. Might be a clearance issue, not sure. But have just try.
1/4” steel ( dint know the alloy, not tool steel, some plate left over from a marine  job). Has a primer on it which stood up to the ceramic media in the tumbler.

https://shufti.blog/2022/11/27/tools-prototype-transmission-wrench/

Alistair