Thread: Best procedure to 're-round' the pivot hole using brass sleeve insert?

Ok, so Im working on a second razor to do a minor restore on. I got it off ebay, and i think the seller just buffed out the blade without taking the scales off, so half of the work has been done for me
But anyways, i need to 're-round' the pivot hole, and I think Im set on using a brass sleeve insert (unless one of you guys can convince otherwise ), but my question is how do I ensure that the sleeve will sit in there straight?
My current plan is to drill just a tiny bit of metal out (making the hole 1/4 inch, as it is almost there already) and then just throw the insert in. Im just not sure how i can guarantee ill drill straight due to the awkward shape of how the original pin wore into the shank.
Here are some pictures:




Thanks for all the help!