This method is a good deal of work and should really only be used as a last resort due to it being difficult and taking a while. That being said this really has worked for me several times and is a sure fire way for removing very badly seized pins. We went with a 3/4" bit so that the sawzall blade would fit with minimal amount of metal having to be taken off of the blade. I would recommend using blades with carbide tips, they seem to work by far the best. This method was only performed after heating the collar, beating with a hammer, putting a press on it, heating it with press pressure on it, hitting it with press pressure on it and it just did not budge. Took about an hour per pin to drill, cut and remove. We used a large 2 speed Milwaukee drill. Hope this helps and best of luck!
