Use a heat gun or flameless torch to apply heat evenly on the tube’s outer surface until it shrinks and firmly wraps around the joint. A few other factors to keep in mind when on the hunt for the best crimping tools to crimp wires are the wire sizes that the tool you’re interested in can cater to. If smaller wires will most often need to be crimped, i.e., for electronic components, then crimping tools with crimper jaws specifically made for small wires are a must. Ideally, a set of crimping tools that can cater to a variety of wire sizes would be ideal.

Place the barrel between the jaws with the wire strands inserted in the terminal, then start clamping the vise. As the name suggests, these types of wire crimpers use a hammering action to create the electrical connection. It’s a good option for heavy-duty jobs and can endure an intense work environment, such as auto garages. Buyers will need a hammer, typically a small sledgehammer, to operate this crimping tool. Other Considerations The best crimping tools can help a variety of wiring projects go smoothly. That’s why we performed hours of hands-on testing with some of the top products on the market. From crimpers meant for installing nylon terminals on small cables and wires to those designed for heavy-duty battery lugs and aluminum terminals, we collected models to fit every need and then put them to the test. When it comes to installing wire crimps, it doesn’t get much easier than a hydraulic model like this one from TemCo. This hydraulic cable lug crimper installs a range of terminal types on wires ranging from 12 AWG all the way to 2/0 AWG. This kit even comes with dies in half sizes for terminals that are difficult to fit.Perfect for battery and welding cables, the Mofeez hammer lug crimp tool handles a variety of wire gauge options and wire sizes from eight gauges to 4/0 gauges. The high-strength iron means that even after hundreds of uses, it will remain durable. The guide groove design on the hydraulic crimper helps to make the die closing as accurate as possible. One customer wrote that they’ve made innumerable battery cables with this tool. Another reviewer noted that it is “easy to hold and pump,” too. Specifications The Wirefy crimping tool handles sizes from 22 AWG to 10 AWG. Well-cushioned, nonslip handles add comfort through long work periods. The tool also features a compact profile of 11.42 inches long by 4.69 inches wide, so users can easily store it in a tool belt or box.

A hammer crimping tool is a basic, low-cost device, often making it best for those who only need a crimper occasionally. However, it is also a robust and compact tool that can put up with tough environments and is often found in automotive shops and wherever else heavy-duty crimping is required. According to one reviewer, this crimping tool kit “makes a beautiful crimp” and is “comfortable to use.” Another noted that it gives a “perfect crimp every time” and has “nice ratcheting action.” Specifications Similarly, a basic handheld crimping tool might suffice for folks who tinker with electrical devices as a hobby. A pro who does the same types of repairs on a daily basis would choose a ratcheting model so every crimp had the same pressure applied, every time. These also release automatically, increasing productivity. Wire Gauge and Crimp Profile This type of crimping tool is better for larger wires. It provides a stronger force, even though it’s still manually operated. They can be easier to use, making them more efficient. That said, they also require more maintenance than handheld tools. Hammer Wire CrimpersAnd if it extends outside the barrel, you will end up with exposed copper strands that can corrode when exposed to moisture.