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Adafruit Universal Crimping Pliers - 1.6 to 2.5mm Size Contacts - PA-21
Make cables and wiring harnesses with ease using the best crimping pliers we've used. These precision machined crimpers will turn you into a pro, no more painful struggles with pliers and generic crimpers that smoosh your contacts so they wont fit properly.
This model does a wide range of the most common connectors, from 1.6 to 2.5mm / AWG #26-18
There's a great website at ENGINEER Co. with lots of details. There is also a video tutorial showing how to use the tool so please check it out!
If you want to know whether it can do a particular pin number, they have a detailed compatibility chart as well