I can vouch for the Knipex Pliers wrench. It may be pricey, but it is very much worth it. I have both the 7in and the 7in Cobra. By far I use the pliers wrench more. If you are looking to compliment the wave, that would be my vote.
I have the smallest Knipex Cobra pliers and Knipex Plier Wrench. For pocket/belt carry, the Cobra pliers covers more bases and weighs less (3.1 vs 3.7 ounces). The grippy Cobra jaws can mar fasteners, so I don't used them on nuts and bolts if a wrench is available instead.The Cobra pliers is sitting in my jean front pocket as I type this. Edited to add that I rarely carry both a pliers multitool and Cobra pliers at the same time due to weight. I often carry a Cobra pliers paired with a Leatherman knife/screwdriver when not carrying a Rebar, Spirit, or other pliers style multitool.
...Damaging of nuts is was also my main worry with Cobra. I am not sure but how bad of a problem is it? So far, I have watched some videos on youtube and it didn't seem too bad.
Quote from: maximus0723 on April 28, 2016, 01:22:42 AM ...Damaging of nuts is was also my main worry with Cobra. I am not sure but how bad of a problem is it? So far, I have watched some videos on youtube and it didn't seem too bad.I am not concerned about the marring if I use the Cobra pliers (or any pliers) once or twice on the same fastener, but I wouldn't use it to make frequent adjustments on the same nut or bolt.I use it on a nut or bolt if I am away from home and without access to a flat jaw wrench. A real world example of Cobra wrench use is tightening the nut holding a wobbly table leg when visiting a coffee shop or bookstore.
Have you considered something like the Loggerhead Immix?http://multitool.org/reviews/miscellaneous-tools-68/large-tools/146-loggerhead-immix-10.htmlDef