"Dave Plowman (News)" wrote:

In article ,
Bruce wrote:
Might it be possible to use a box spanner and reinforce it by welding?


I thought that, but concluded that the 200Nm torque might be a problem.

Depends on how you reinforce it, I'd say. Especially if clearance round
the outside isn't a problem.


A valid point. However, no amount of external reinforcement is going to
change the far from optimal shape of the "socket" interior, although it
should help to reduce deflection under load.