Dont know what your skill level is in this area, just remember that owning machinist tools doesn't make you a machinist either, there is a good amount of skill to use those types of tools correctly. You'd be surprised at the number of people that try to use a micrometer as a C-clamp when they mic something. Snap gages, mics and dial bore gages do take a certain feel and experience to use correctly. Spending a little extra for better quality tools can go a long way in achieving more accurate results, so don't price shop if you expect to get good results. I bought my cam bearing tool from Dura-Bond, but Snap-on and Mac Tools and others have a good version of one as well, so you can check with them if you are having difficulty locating a good one.
