Crimping tool?

Called Powerpole in Amazon referral above

Change the pin type, to something better. Otherwise use cheap crimp and solder it to get good contact. This is the spec for a very good crimp short of using a swaging tool. MIL-DTL-22520 link to example

@audio-union ,

That is a very impressive crimper. Thanks for posting this.

Bob

Ideally, you want a tool that has jaws shaped like this.

They are shaped to roll the crimp and strain-relief then punch them down to 'bite' the wire. This is very difficult to do correctly with normal crimper or needle-nose pliers, etc. (almost impossible with soft copper/brass/silver/gold connectors).

Not the only tool available that will do the job, but one that will crimp correctly...
 

@gdnrbob 

You are welcome, once upon a time I did a lot of DOD work as an engineer, amazing how much can be used in high end audio with great results. You can get this an Homedepot, but there are less expensive uncertified tools of the same design available there.