YangoutoolMicro Molex Crimper: 32-20AWG (0.03-0.52mm², 0.2-0.81mm), Compatible with Molex, JST, JAE, D-Sub, Precision JST Crimping Tool

good tools for the connection make,so far so good

Aside from the product looking far from brand new (greasy, fingerprints, marked up), the ratchet mechanism that is listed as a feature is the worst design flaw about this crimper. If the handles are fully squeezed together, unless you have super tiny fingers you'll have to grab some other skinny tool to get between the handles to unlock the ratchet and release the handles to allow the jaws to open.It works, if you manage to get the jaws open. I'll probably return it. I would not purchase it again or recommend it. It really puts the integrity of "Amazon's Recommendations" into question.

ratchet spring fell out first use. No idea where it went.

Not too fancy but it does the job, the handles could be made with better materials

I needed to crimp Dupont jst and molex connectors and originally boughthttps://www.amazon.com/dp/B016B39EPQ/ref=cm_sw_r_cp_apa_fabc_HSJ44V8HDR1QYSEDH7S9?_encoding=UTF8&psc=1 which has jaws that meet at an angle and is a bit thicker and didn't work well for me because the edge of the connector sat approximately 2mm inside the clamp making it darn near impossible to tell how far you had inserted the stripped wire. These crimper truly are for the tiny connectors, making it easy to get great crimps on them. They are thinner making it easy to see how far to insert the wire and the parallel jaw closure means that the crimps are even and straight. I followed a YouTube video link to find these and am glad I did. I made four perfect crimps straight out of the package in less than 6 minutes (most of that time was spent lining up the connectors and stripping wires), with the first tool I struggled for 90 minutes with 6 rejects...