Ferrule Crimping Tool Kit, AWG 23-10 Self-adjustable Ratchet Ferrule Crimper Plier c/w 770End Sleeve Ferrules Connector Terminals on Electrician, Contractors, Repair Support

crimpers are nice and work as they should. set works great for the wire sizes it indicates its for. Made making my connections easier at it should. if you work with smaller size wiring this thing is a nice addition.

I was a little concerned because the price of these was lowest. But, no, this is a "lifetime" tool. One reason is that it is well made with 100% steel moving parts but also because this kind of crimpper does not use much force. Ferrules are not mashed-on gas tight as are other crimped parts. So only a light-duty squeeze is enough. Ferrules are designed so that the "real" pressure is applied by the screw in the terminal, not by the hand tool. So the tool. has to squeeze the ferrule only tight enough that it will not by easily pulled off, then yhe screw on the device you are wirring up makes a dimple in the ferrule and the connection is MUCH more solid then if you have simply twisted the wire and stuffed it into the hole. The tool is "lifetime" but do buy more Ferrules at the kit only comes with a few dozen of each size and you will need hundreds if you do this kind of work very much (every wire needs a ferrule on each end, so it adds up quickly

Works really well

I spent last night I spent last night going through my kit built 3D printers adding these ferrules to all the screw terminals on the main control board. On the 10 ga wires, crimped ferrules left them slightly too wide to get into the terminal to be clamped, so I had to squish them just a touch with my Knipex pliers wrench to get them to fit in there. I got the crimper that leaves square ferrules because my use will entirely be with screw clamp terminals. The connections are now incredibly solid and I no longer have concerns about the wiring popping loose and causing issues. I had to increase the tension in order to get a crimp that I felt was satisfactory on the bigger ferrules. Even with the lighter setting the crimps felt very solid, but I am a proponent of going overkill when doing anything. Hence my use of massively thick wiring to power my 3D printer and it’s heated bed. The crimper still works great on the smaller ferrules with more tension. Once you install the crimped ferruled wires in the terminals, you get the satisfaction of tugging on the wiring and saying the age old utterance all adult males live to say “That’s not going anywhere”.

It worked in the shop when I needed it for wiring a solar charge controller. I only needed a few crimps and I don't expect to need this for more than a few hundred crimps lifetime total max, so I can baby it and never take it outside. If I needed one very often in the field for rough duty, on the one hand I might want a high-end ferrule square crimper, but on the other hand you can buy a number of these for the price of one high-end unit.