As others have mentioned, there are very specialized tools for this, but they are very expensive. I believe that the inexpensive tool I pointed to should do the job. If it doesn't, it isn't as if you'll be bereft of a lot of money. I singled it out because it uses a die that has separate sections for the insulation crimp and the conductor crimp.
I have a tool that I use for Dupont-style connectors; its action is ratcheted, so that it doesn't release the crimp until complete. While convenient, it's entirely possible to do the same with a less expensive tool.
