Centering key ways or slots in the shaper. 

Thanks. More to come.

My pleasure. It's indeed hard to find info on shapers.

ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-J1O1j_3nKvU.html

Thanks Tony, and it works!

I don't know. Just go for it.

I think this was cold rolled steel. It works great.

@@Rustinox ok thanks

Thanks.

Glad you liked it.

External. For internal see part 2.

@@Rustinox thanks

Google "Battle of the bulge", That's where i live.

​@@Rustinox i tought you were flemish by the way you sound, or did you emigrate to Wallonia? Visited Bastogne last year, coming back from a weekend in Bouillon. I was unaware that it was the yearly carnival up there, so i only got a chance to visit the large war museum at the memorial site. I myself come from a town called Affligem, most famous for its beer and traffic jams :)