Chainsaw Repair

I am not sure exactly what you are describing.  But if you are talking about turning down the diameter of the bar mount studs, I think that it would be easier (and less of a permanent modification) if you widened the mounting slots on the Picco bar.  Same thing with the hole for the tensioning peg (or use an Intenz bar?).

Can you get the right drive sprocket for Picco on your 024?

Philbert