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Most of this review, if not all, will echo the sentiments mentioned by others. Right off the bat, the thing is just cumbersome - way too wide of a grip, way too large a profile to fit into anything even remotely resembling a cramped space (common with wiring)...
You know what I'm just going to fire off complaints in no particular order not even worth my time: don't buy. Poor labeling system, inadequate instructions, dial supposedly for micro adjustments regarding how much insulation to remove is a total joke, does not automatically figure out gauge (plenty of times where it wouldn't strip something then would immediately following one of their micro adjustments that supposedly has nothing to do with that). Also, don't even get me started on the crimping system....and to top it off the wire cutters, at least for my work flow are in a terrible location.
I gave this thing a very patient go-of-it over mulptiple sessions/use cases over months. I'm positive there's some shred of user error in there somewhere but there's just too many reviews to put all this on the user. The only reason I didn't give them 1 star is because MOST (not all) of the time it will remove SOME amount of insulation and the wire cutters haven't screwed up....
I bought these to make wire stripping easier but these managed to make it more difficult if not impossible. Except for one time, no matter how I have adjusted them, they simply do not strip the wire. The last time I tried to use them I gave up and ended up using my diagonal pliers to snip the sheath and tossed these back in my bag never to be used again.
Good stripper and the seller very nice and loved that they followed up on their product. Took a star because the stripper does not work 100% of the time. Sometimes you have to try a couple of times before it strips the wire. When it works it works great which is 95% of the time. I do recommend it since I have the old style of strippers and sometimes it is a pain to use. With this one is a breeze and faster to strip the cables.
The plastic handles aren't nice, they're cheap, and they're much larger than the pair I was replacing. This pair looked nice! Was surprised by how much I will never ever ever use them because they are terrible.
I tried these on #14 solid house-wiring cable and #22 zip cord 4 conductor earbud wire. Neither worked. Actually the one thing that did work is that the pliers would pop the sheath off the #14, but not really a sufficiently long section of it to be useful, as you would expect. While that wasn't what I was expecting it to do anyway, I WAS expecting it to strip the insulation off the black and white inner #14s. It would not. This particular cable is made with a hard clear slick coating on top of the black or white insulation per se. It was that slick coating that caused the problem. The right jaw grabbed the outside of the insulation ok, but the left jaw didn't hold it in place strongly enough, so it slid through, leaving an ugly scraped surface but not removal of insulation. Mulwark offered no directions as to how to set the knurled brass thumbscrew on the left jaw. I tried various settings but none worked.
On the #22 wire the situation was the opposite. The left jaws engaged the insulation ok but the right jaws wouldn't penetrate the insulation far enough to cut or break through, so all it did was stretch it out. Again, same results for many different settings of the brass thumbscrew.
I thought about returning it and springing for an Irwin, but the MulWark seems to be built well, and is actually probably as good as the Irwin. Interestingly, it's the one-star reviews of the IRWIN, not the MulWark, where I see the greatest number of reports reflecting my experience.
From the pictures, the Neiko and its ilk seem to be cheaply built compared to either MulWark or Irwin. So I will not be trading this one in for an Irwin, even less one like Neiko. Now, I'm leaning toward the old fashioned style, but the problem with them is that they are more likely to nick the conductor than this style.
It really is a shame that this one doesn't work. I really like the concept of this design, and the MulWark is built well. But, if it doesn't work, it doesn't work and is essentially useless.
Seems to work alright, but I had to really turn up the adjustment to get it to cut correctly. It works well with smaller gauge wire, but struggles to cut thicker stuff. The clamps that grab the wire just don't seem to hold the wire well and it slips. I would probably recommend getting something nicer if you want a tool that will last.
Doesn't work well on all wire types and needs some fiddling, but works well enough to justify its excellent price (bought when on super sale). Looks like one company makes essentially identical units for many vendors. Once adjusted for a particular wire type, it works well.