Quick crimp un insulted ratchet chrimpers are the go. Been using them since an apprentice (15 yrs) with out fail and you can send them back to them and they will calibrate them for you used to be free of charge too. For doing relay blocks ect but I highly recommend them years they are dear but ebay ones are junk.

https://www.quikcrimp.com.au/tools/hand-crimping-tools/crimp-tool-uninsulated-f-crimp-3713.html