This is a very good tool when packing for a long trip when space and weight is critical. It is light, compact, and works great when put in between a rock and a hard place on an adventure. Recommend to anyone who travels further than the bar down the street on their bike.
The problem with this tool is that the channel milled into the side plates which is supposed to allow the chain pins to clear is not milled deep enough. When pressing on the master link end plate, the side plate of the tool bottoms out on the chain pins before the link end plate is fully seated.
I had to force a master link together with this tool and it bent pretty severely on first use. I was able to beat it back flat with a hammer for future use, but I wont carry it on the trail as I dont have faith in it.
I think it is possible that I overloaded the tool and bent it. If true, that is my bad so I didn't totally trash the rating. Suggest if you buy this, don't get heavy handed or it will fail. Still, I didn't whale on it with vise-grips or cheater bar, so I don't think it should have bent. Just sayin'.
<br>I bought 2 chain presses and mixed up which was which. I'm revising my rating of this press to 5 star because it is NOT the one that failed. Earlyheimers kickin' in again. I narrowed the threaded press bolt nose by grinding so I could use this with clip type masterlinks. This really works great for pressing the plate fully on without having to omit O-rings or X-rings. Following that, installation of clip was a snap! (argh; pun intended)
I found that the grooves that allow the chain's side plate to be pressed onto the pins are not quite deep enough. The press tool plates were just pressing or squeezing the chain pins (on each side of the chain and so didn't move once the press was tightened). I will drill 2 small dimples into the press tool plates (get the spacing correct) - to allow the chain pins to move into and allow pressure on to the chain plate/link to press it over the protruding pins enough to put the retaining clip on:) Took me a while to figure out what was happening... but I got it eventually:)
I used this for fitting and EK 520 chain to my bike. The groove that is supposed to sit over the chain pins is way to shallow so you can't fully press the side plat onto the chain to allow for the clip to be slid into place. I ended ip removing one of the plates and just having the bolt press directly on the side plate. This seemed to work well.
did not work on my DID chain metal press plates bent and bolts stretched before it could even press the plate enough to see the master clip groove. had to take the tool apart and use just the plate with the slot and a medium size industrial vise to press the side plate o enough to get the clip on.
Ever tried to squeeze an o-ring chain together with pliers? Me too, and I'm over the frustration. This tool is cheap and makes installing the master link clip MUCH easier. I love this thing and it's simple to use, well made, and very helpful.