Here's another one of Brad from Tactical KeyChain's ingenious mind creator of the TiPiK and TiKeY, which came as an optional extra from his WTF Kickstarter project.
The is the "Large WTF", cut from the same titanium (Ti-6Al-4V) alloy as the regular titanium WTF's, but is significantly beefier in all respects. at 4.5mm (3/16th") thick, and 110mm x 33mm (4 1/4" x 1 5/15") in length and width. Featuring the same 1cm and 1/4" marking dimples done the long edges, this tool also features in its jaws; Imperial 1/4", 5/16", 3/8", 7/16", 1/2", 9/16" & 5/8" and Metric: 6mm, 8mm, 10mm, 11mm, 13mm, 15mm & 17mm wrench heads.
neodymium magnet that sits flush with the face, allowing the tool to be stuck to a toolbox, to hold the bolt you just undid, or the like. I've used mine both to store the tool, and to catch parts.
This has been especially good when working in messy, cluttered spaces, I just attached the tool to a pipe, girder or the like, and kept working.
As with the Mini WTF tool, the titanium has a bit of "flex" which gives some leeway with nuts and bolt, the thickness of the tool keeps it from flexing TOO much, though.
There is also a built in 1/4" bit holder, which is an invaluable addition, as it gives you significant torque advantage, when working on stubborn jobs. Make sure you use good quality tools, and the rest will follow.
The two spacer holes in the tool reduce the weight and add lashing points, should dummy-cording or spooling of paracord be desired.
Brad suggests that you could carry 7.5m (25') of paracord wrapped around the central mouths of the tool.
I had my Large WTF lightly anodized, which gave it a "olive drab" finish that worked nicely with my collection of khaki gear, and found that it fitted pretty well into PALS/MOLLE channels, spanning two channels, and three rows for a secure fit.
All in all this is a robust and useful tool, and well suited to a lot of tasks where lugging an entire socket wrench set might be impractical. Getting in to reach close-fitted nuts could prove tricky, but hey, more titanium for my collection, and distributed tools for my EDC and bug-out-bags.