inch and a half in oak.

The problem is that the shear pin is overly complicated and is part of the mechanism for engaging the withdrawal gear.

The pin is tapered on both ends and held in the shaft with a spring (didn't know that till it came out -- never saw it, just heard it.) We've got to figure out how it all worked and then get a new spring.

We were using it during a one day demonstration/workshop. We finished the day with the trusty Boss Double Eagle.