I mentioned this in a different thread but I think it needs it’s own for visibility.
My alligator clip failed, the wire just pulled right out, only held in by a small glob of solder and the heat shrink tubing.
It’s very difficult to heat an alligator clip to the point that solder will flow properly and make a solid connection. It’s very easy to apply heat to just the solder and have the wire attach to the clip. Problem here is that will make a very weak mechanical connection and it WILL fail.
Just as mine did. I wonder if this is the root cause for some of the intermittent issues I have seen in this forum.
I fixed mine by first crimping the clip to mechanically hold the wire in place, and also soldered it to provide a solid electrical connection. I am in the habit of checking for a red light each time I use the probe.
Please check yours!
Keep on cutting . . .