...first, sorry huma for stealing your picture.

Back to the subject.

I attempted to drill the hole in the shaft bigger so I can use a larger diameter pin. I tried using a standard high-speed steel bit. I may as well have used yarn. Then I tried a hardened coated Dewalt drill bit. It just shinned the edge of the hole a bit. I then bought a cobalt bit which made zero extra progress. The only thing left to do is shell out the $11 for a carbide bit. I will be totally ticked off if that doesn't work.

Any of you have success in this task?