New Dupont Crimpzange Pin Crimping Tool 2.54mm 3.96mm KF2510 28-18 AWG crimper 0.1-1.0mm² * blue * (Electronics)
I had this special pliers to crimp contacts for small AWG28-24 lines ordered (not Amazon). Unfortunately, I realized that just does not work, because the die set is made much too imprecise. In particular, the support surface for the contact base is t