Do I need any special tools or equipment to rebuild / repair a bolt? Such as a spring compressor and such? I was rummaging thru my stash area & found my old bolt to my .270. It broke the bolt head retainer at the hole where the firing pin passes thru. When it happened a while back, I called Savage & had a new one sent (that lesson cost me $145) and never gave the old one a second thought. Now that I rediscovered it and I need to do some other work to my rifle, I figured it would be a good spare. Also, if somebody can aim me in the direction of "firing pin / retainer hole diameter info", I'd be much obliged. The old bolt is from my .270 win. manufactured in 1997. I recall reading about a change in pin / retainer hole diameters. If I recall correctly, the pin diameter & retainer hole was made larger for strength but, I'm not sure about the difference with older / newer - long vs short, etc.
Thanks for any info & light y'all might shed on this for me.