I recently discovered the new (to me) pass through RJ45 connectors and Ideal Industries
crimp tool that cuts off the excess wires when it crimps the connector. They make the job so much easier that I “almost” enjoy making/terminating my own cables now. They are well worth the extra cost to me since I only have to do about 20 or so a year.
Great! I believe one should use what works best for the them and provides them with time-proven, reliable results. But like any tool that "makes life easier", it won't correct mistakes, so it's good that you know "how-to" and practice often.
It's too bad when some folks get started and they seek guidance they get incorrect info or poor method instruction, so if there are any noobs out there reading this, be on the alert. Below is an image from Klein's entry on amazon. They corrected their post of a pass-thru crimp tool with the wrongly-reversed color code on the side of the tool (maybe after I
posted an image of the error on IPCT back in Aug. of this year), but their depiction of the CAT cable inserted into the RJ-45 is VERY bad....not only is the color code reversed, but they did not put the cable's grey jacket under the jacket crimp. It's possible the demonstrator wasn't finished inserting, had not crimped, as it's obvious it wasn't trimmed but one should NOT post an incomplete process or incorrect image without some explanation. That being said, there is no sufficient explanation for depicting an incorrect color code.