This product was a huge disappointment. I always test a product first before using it in an application and it has saved me time and money, just like in this situation. Examining the flags more closely, I noticed that there wasn't much conductive crimping material on the barrel portion of the flag, so I decided to take a closer look and cut several of each with the same result. After removing the nylon covering from some terminals, I found that the 18-22 AWG (red) and 14-16 AWG (blue) terminals have insufficient conductive barrel (actually no barrel at all) to crimp and hold who had clamps. wire present. Whether you're using a flag crimping tool or an old-school crimping tool, the wires inserted into the red and blue flags will pull out instantly. Apparently because there is no "corrugated" material to attach it to the flag. Terrible product, I am returning it immediately for a refund. Made in China and that says it all.