Wirefy Heat Shrink Crimp Connectors Kit - Heat Shrink Wire Connectors - Automotive Wire Connectors Kit - Insulated Ring, Spade, Fork, Hook & Butt Terminal Connectors - 22-10 Gauge - 540 PCS

The Wirefy Heat Shrink Wire Connectors Kit is the perfect solution for all your automotive and electrical wiring needs. With 270 pieces of high-quality, heat-shrinkable connectors, this kit includes a variety of butt connectors, ring terminals, spade terminals, fork connectors, and hook connectors in sizes ranging from 22-10 gauge, ensuring you have the right fit for any job. 🛠️ These insulated connectors provide superior protection against moisture, corrosion, and wear, thanks to the heat shrink feature that creates a tight, waterproof seal when heated. 🌧️ Whether you're working on automotive wiring, marine projects, or home electrical repairs, the durable, resistant design ensures reliable, long-lasting connections. Perfect for both DIY enthusiasts and professional electricians, this kit helps you tackle any project with confidence and ease! ⚡

A quality product. It has a dual wall plastic cover; the inner wall is glue and the outer wall shrinkable plastic. When heat is applied, the plastic shrinks (ratio 3:1) and the glue (polyolefin) melts to form a good seal.The best crimps are done with a ratcheting terminal crimper, which applies the correct pressure (see further below).There is a broad selection of crimps in the kit, both the type and the size (9 types in 3 sizes).A dual wall crimp saves space when that is scare, like on a boat or travelling remotely in a car. I take a selection of crimps in a smaller container to save even more space.The 540 piece kit has enough crimp terminals for most general purpose tasks around the boat or car. This is the best all round terminal kit I have purchased.There is a difference between a single wall and dual wall crimp, the glue in the dual wall gives a stiffer result with less movement, but it also improves the overall strength. If you an issue with vibration (like Outback Australia or Africa) a single wall crimp maybe better, as it reduces the damage caused by corrugations/vibrations by allowing more movement reducing the damaging effects of corrugations. Choose the best option for a given job.CRIMPING TIPSSome suggestions on getting good crimps:1. Buy quality terminals like the Wirefy.2. Purchase a good wire stripper like the IRWIN VISE-GRIP 2078300 Self-Adjusting Wire Stripper or the Klein Tools 11063W Katapult Wire Stripper.3. Purchase a Ratcheting Terminal Crimper. If you want a variety of dye heads for different jobs look at the SG Tool Aid SGT18980 Ratcheting Terminal Crimping Kit. iwiss makes a range of specialist crimpers.4. Strip the insulation from the wire to the correct length with the wire stripper (note how much quicker, easier and better quality the wire stripper is compared to a pair of pliers).5. Match the Wirefy terminal to the wire thickness (important for good crimps).6. Place the terminal in the correct dye in the crimping tool. I gently close the crimper to lock the dye onto the terminal but without compressing the terminal, then I insert the wire into the terminal and compress the crimping tool.7. Using the correct size dye and placing the terminal correctly into the dye is important.8. A ratcheting crimper applies the correct pressure to make a great crimp.9. Use an electric/butane heat gun to shrink the plastic cover and melt the glue. I apply heat until I can see the crimp seal and a little glue comes out of the plastic cover. Wirefy terminals are translucent so you can see through the plastic to inspect the seal.10. Let it cool. Job done. Test the crimp.11. Common mistakes when crimping: a) not matching the wire size to the crimp terminal, b) not using the correct dye for a given terminal type, c) not correctly placing the crimp terminal correctly in the dye jaws.12. Practice is important. Develop a good technique before using crimps in real life. I have cheap terminals and old wire and I practice to develop a good technique before doing a job for real. Test both single and dual wall terminals and see for yourself the differences in stiffness I discussed above.The initial cost of the tools can be expensive, but they will give you a life time of service. One job I did on my car, meant the tools paid for themselves. I wish I had brought them years ago!Buying the larger size kits like the 540 Wirefy saves money. I spilt the terminals between me and 2 friends – we all get a selection and a big cost saving. Buying terminals in small kits is very, very expensive.I have found more uses for the crimps than I originally thought.

Have not had the chance to use them yet, will update the review after use and after some time has passed. I did want to note that the connector assortment kit appears to be nicely stocked and organized. The case and contents appear to be good quality and do not feel or look "cheap". You will note in my first photo an example of the size of the kit and case compared to a fishing/tackle organizer (the size I was expecting), and an inexpensive heat-shrink assortment kit (pretty close to the size I usually receive assortment kits in). This kit is not small. While it was larger than I was expecting (not going to fault them or amazon for that - I never bothered to check the size as it wasn't important in my selection of this kit), it is not so large as to be oddly-sized or inconvenient (I have a few other kits and organizers of the same size). It is a good size, especially for the number and types of connectors included.I was also nicely surprised when I discovered that Wirefy had also included a detailed, illustrated, and color-coded list of the kit contents, complete with the part numbers and quantities included. This should make it much easier to order components when the need to restock the kit arrives.As I stated at the start of this review, I haven't had an opportunity to use this kit yet, but I was so impressed by the apparent attention to detail and quality that I just had to note it. Good job Wirefy!