Poor geometry leads to broken crimps

I bought these so that I could build a power cable for one of my amateur radio transceivers. It only barely works. It didn’t seem to have the appropriate geometry to actually create a good crimp. The wings would break off because the crimper had a poor configuration to actually bend them over. I resorted to soldering the connections instead. I suppose with further trials I could get it better, but a crimper is supposed to be pretty easy to use.

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