That picture makes sense, thanks for the link.
I'm having trouble trying to figure out how to calculate if the detent is sitting on a radius rather than on a countersink angle.
So... three parts, the head of the wrench, the detent, and the end of the handle of the wrench
1. there is force being applied to the end of the handle
2. the detent has a spring force pushing along the axis of the wrench towards the head and a torque
3. the head of the wrench has a torque...