haisstronica 6PCS Crimping Tool Set - Ratchet Wire Crimping Tool for Heat Shrink,Insulated Nylon,Non-Insulated,Ferrule Wire End,Open Barrel Terminals,Solar Connectors

Wow, I am seriously impressed with this crimper!After getting this out of the included storage case, I used the heat shrink crimping jaws to crimp a heat shrink spade connector on a 16 AWG wire, and it worked perfectly the first time. Then I changed the jaws to the insulated connector jaws, and I crimped an insulated connector onto a 20 AWG wire, and it worked perfectly the first time. That is two for two, on two different style crimp connectors, with excellent crimp quality and holding power! I have never had that type of success with any other crimpers I have used.I'm definitely looking forward to continuing to use these, and expect that they will work very well for my occasional wiring needs.Changing the jaws was pretty quick and easy with a screwdriver. However, one slight challenge I had with that, is lining the top and bottom insulated connector Jaws up with each other. I say slight challenge, because it really was just a small challenge/inconvenience. If I seated both the jaws fully into the crimper, then the two jaws weren't perfectly aligned with each other. What I did to remedy that, was simply to tighten down the bottom jaw, and then align the top jaw with the bottom jaw before tightening it down. No big deal, and seem to work very well.This is a good one, just like the many other positive reviews show!

I've noticed the newer crimp connectors with heat shrink sleeves don't seem to crimp as well with the old type of crimp that leave a narrow crimp mark. I thought I would try this since I bought an assorted set of the connectors with the shrink tubing. I'm not disappointed. The wider crimp seems to be working well as it is securely holding the wires in the connector where I could pull the wires out of the connector with the old style crimper. I'm not sure if it's a material difference in the connectors. They do seem much thinner than the old non-shrink sleeve versions. I'm please with the performance of this tool. The different heads are great because I do crimp different styles of connectors, i.e insulated and non-insulated terminals.

I like the performance of the haisstronica 6PCS Crimping Tool. I used the butt connector anvils to crimp some heatshrink-style butt connectors on 18 and 16 AWG automotive wire. The anvil's design preserves the integrity of the insulation around the butt connector so the electrical conductors stay dry under my truck.The ratcheting action ensures a full mechanical crimp and allows you to pre-clamp the connector in the jaws and insert the wire after, just before the final crimp. This helps when crimping in tight spaces.The tool is big. I had some trouble fitting it into the cramped spaces where my chassis wire bundles run under my truck.

I have been fighting poor crimps for years when using the 'cheap' crimpers usually supplied with kits. Theses things work great so far. I am a bit concerned that they may not be heavy enough for heavy daily use but for the average DIY person these a great upgrade. The method for securing the different jaws seems a bit weak.I have yet to get a bad crimp.I do like that the set comes with a decent case so that the different jaws and handle all stay together.

This haisstronica crimping tool for heat shrink connectors is the latest addition to my arsenal — and, as usual, the quality and construction are excellent. They allow me to crimp various types of heat shrink connectors quickly and easily, since the jaws of this tool are forged with precision technology and can complete a secure crimp each and every time. The comfortable grip and solid ratchet action, as well as the ergonomically designed nylon, non-slip handle ensures comfortable and swift operation. For convenience, there is a quick-release lever on the inside of the handle that opens the jaws. When it comes to wiring tools, I will always rely on haisstronica 100%.

(My review here was requested because HAISSTRONICA detected a return)I love these crimpers, they've worked so well, I ordered a second pair.There was a mistake in one of my orders where a different product was shipped instead of these crimpers. I believe that's why HAISSTRONICA thought there was a problem.No issues at all, simple Amazon Order fulfillment mistake, or oversight.Fine product.

I purchased this set specifically for my current need of a better non-insulated terminal tool than what I currently have and its worked exceedingly well. The overall construction and kit contents should cover many needs for most people- with other optional crimp jaws available, as needed. This is a 5-star product.