Hozan P-707 Crimping Tool (for Open Barrel Type Contacts), Crimping Pliers, 15 Types of Large and Small Dies, Compatible with a Wide Range of Terminals

I bought these specifically for knock off DuPont connectors at the advice of an online site and it gradually took over all open barrel crimps I do.I have good quality expensive multi-die crimpers that do insulator and conductor crimps at the same time and numerous cheap (< $100) pliers type crimpers. The P-707 just does the job better. I don't really notice the lack of ratcheting but I do have giant hands so that may be why. The force required isn't particularly high. The few bad crimps I've had out of hundreds were all my fault for letting the wire get out of position.

I'm finicky about electrical connections on vehicles. I've outgrown the colored insulated crimp-on terminals. I want my all my wiring to look like OEM spec. This is probably the least you can spend to get a tool that will make dependable open barrel crimps. If you look closely at the crimping dies on the Chinese generic crimpers you will see that they are rather crudely made. The Hozan dies are accurate formed. It takes a little practice to get your crimping protocol down so order a lot of quality terminals to practice on. I get the AMP/TE Connectivity ones from a large electronic supply house.With this crimper it is a two step process. First insert the terminal in the crimper and crimp the stripped wire into the terminal. You can control the amount of pressure you use. If done properly the open "ears" of the terminal are now formed into a soft "M" shape over the bare wire and a small dimple is usually indented on the back of the terminal. Give a light tug on the wire to make certain you have crimped enough. Then I move to a larger notch or die in the crimper and fold the open ears over the insulated wire for strain relief. You apply enough pressure to firmly grip the insulation but not enough to cut through the insulation to contact the bare wire. I finish up with heat shrink over the exposed metal of the terminal outside the contact points.I hope this makes sense and is of help to you. With practice you can come up with cleanly done, dependable terminals for your projects.

Good crimper for general wiring.The jaws could be a bit wider, but that is just a nit.Happy with it.

Dupont crimp terminals are shaped to be crimped into a circular form. Every cheapo tool out there crimps them oval, except this one. Worth it for this alone. Works as well as the official factory tool.

Update: 3 years and thousands of crimps later on my personal set, I cannot be happier with this Hozan crimper. Not only has it held up great, but when my coworkers borrow it for that pesky terminal that they need to crimp, they are immediately impressed and ask where to get it. If I had to take one set of crimpers to a desert island I would take the Hozan P-707, hands down.Original Review: I crimp a lot of terminals, and this crimper seems to have an answer for 99% of the terminals I come across. It is well made, and while I wanted a ratcheting action, I realized that I have better control over those odd terminals without it. Small terminals are a breeze thanks to the reliefs in the sides of the tool. We have one at work and I have one in my toolbox at home. Would recommend 100%.

This is, by far, the best manual crimper for open barrel terminals. Once you learn the procedures to operate it, it makes a strong, factory like crimp. This is not fast, but for the "Do it yourself" or any repair shop, this tool will make short work of any project or repair. My original "HERO" wire crimper was destroyed in an accident years ago, and I have been lost since then, I finally purchased this tool after a lot of study, I am happy that I did. Owning several older historic motorcycles and classic cars allows me many opportunities to use this tool. I am pleased!

Yes yes it is true, this crimper is of incredible quality and will probably provide the best crimps for the price, BUT. It just isn't designed that well.Issue 1: The crimp direction for the conductor crimp and the insulation crimp are reversed so you have to flip the crimper around twice to crimp one terminal.Issue 2: I have medium sized hands and I have just enough extension on my fingers to use this thing, if you have small hands you, you are not gonna like this thing.Issue 3: Force requirement, This crimper requires a disproportionate amount of force input to the crimp strength received, after about 50 crimps my hands are pretty tired, not even pulling the clutch on my 650 dual sport all day is as tiring as using this crimper.The only benefit I see with this crimper is precision. I figured out how to get nice crimps for DuPont clones on my 25$ crimper after buying this one, and given that the cheap crimper is quicker, easier to handle, and requires less force, I honestly am going to start using that cheap Chinese one over the Hozan.To get good crimps on the cheap crimper what I do is crimp normally, them bring the small end of the crimper over the insulation crimp and crimp 3x.Using the Hozan and the method I mentioned above the wire breaks before I am able to pull the crimp off so I am going to say it:The hype around the Hozan crimper is old electronics guys in their 40s+ oogling over nice Japanese build quality and properly formed dies when really it doesn't matter that much and the crappy 25$ crimper can be just as good if not better if you get a bit creative withit.