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Adafruit Ratcheting Crimper Pliers - #18-28 AWG [ADA1213]
Make cables and wiring harnesses with ease using smooth ratcheting crimpers. These precision machined crimpers will turn you into a pro, no more painful struggles with pliers and generic crimpers that smoosh your contacts so they wont fit properly. Once you've pressed enough, the ratchet releases, so you know when you've applied enough force.
This model will work best for smaller common connectors, from 0.1mm2-1.0mm2 AWG #18-28 - all those frighteningly small contacts used in fine pitch connectors.
There's three slots and you can sort of eye-ball which one will fit your contact best. Can do female/socket or male/pin crimps. Check this document for some guidelines on good crimping hygiene.
Ratcheting Crimper Pliers - #18-28 AWG