When I need a low-profile adjustable wrench to fit narrow spaces, I reach for my Stanley MaxSteel 6″ wrench. It has narrow tapered jaws that in places my other adjustable wrenches just cannot go.
This Engineer thin jaw adjustable wrench (TWM-07) doesn’t just have narrow jaws like my Stanley wrench, it has machined-down super-thin jaws that are just 2mm thick. This is the adjustable wrench you want when nothing else will fit, except maybe for bicycle cone wrenches.
The wrench geometry makes it optimized for tightening operations, but in a lot of cases it can fit in the reverse direction for loosening operations.
The wrench measures about 6.5″ long and has a maximum jaw opening of 0.94″. Engineer makes these adjustable wrenches in Japan.
Buy Now(via Amazon)
Engineer also makes a 4-inch “Pocket” version of this wrench (TWM-08) with the same jaws and a molded handle grip.
Buy Now(Pocket version via Amazon)
Update: there’s also a 6.14″ soft-gripped version as well.
Buy Now(6.14″ soft-gripped version via Amazon)
I have mixed feelings about whether this is a tool worth buying, except with specific uses in mind. On one hand, I can think of a few times when the thin jaws would have come in handy and saved me time and effort. On the other hand, the thin jaws probably make the adjustable wrench less suitable for heavier duty tasks. It seems like a better tool for an electronics or specialty tool kit, for users that encounter thin nuts and fitting flats on a regular basis.