I’ve got four of these to do, they’re window regulator guide blocks:
![](https://i.postimg.cc/mDgXDb9J/A0393188-85-F9-48-BE-B985-3-B5-F3-DE14177.jpg)
The back of the pin is heavily counterbored as shown, the receiving hole is not chamfered at the exit side.
I need to make/adapt a tool to set these pins very solidly. Thinking of using a vice with appropriate tooling, to progressively deform the piece.
Would I be better placed to form a bevel on my “setter” or a domed end? Dry or greased?