I have a 3mm roll pin punch I picked up from the CGW website that is specifically sold to remove and reinstall the firing pin retaining pin from a CZ slide. However, I no longer see it listed on their website as an individual product you can buy... but it is included in a toolkit they sell for $38... although that kit appears to be out of stock at the moment.
Prior to purchasing that, I used a steel 1/8" punch that came with a cheap set I ordered off of Amazon several years ago. It worked fine to remove the FPRP from the slide of my P-07's.
For reinstalling, I have a cheap set of hollow-ended steel starter punches ordered off of Amazon, one of which will fit over the FPRP so I can tap it in with a hammer and not mushroom it out, up to the point where the steel punch will start making contact with the slide... then I normally use my vise to push it in a bit further and then tap it into final position with a brass punch to avoid marring my slide.