Hand Tools
PB Swiss Long Rainbow Metric Ball-End Hex Wrench Set Review
Swiss-made long ball-end hex wrenches with bright color coding, a wide 30-degree engagement angle, and a precise fit for bike work and precision fasteners.
Introduction
A good hex wrench set is one of those purchases you only think about when the old one fails you. After years of hard use with a generic black-oxide set, this PB Swiss long rainbow metric ball-end hex wrench set has been a genuine upgrade. The tools are made in Switzerland, and they bring together three things that are hard to find in one set: a clean, precise fit, long and short reach on each wrench, and bright color coding that makes small sizes nearly impossible to lose.
The set covers 1.5, 2, 2.5, 3, 4, 5, 6, 8, and 10 mm. That is essentially the standard metric range you will encounter on bikes, electronics, and general assembly work, with no odd skips.
Who This Product Is For
This set is aimed at anyone who works with precision hex fasteners, and especially bike mechanics. Road and mountain bikes are full of hex connections in alloy, titanium, plastic, and other materials, and frame bolts on full suspension bikes in particular punish sloppy tools. Even a small amount of play in a wrench can round out a bolt head quickly, especially if the bolt is seized or under-lubed. If your fasteners are high-end, your tools need to match.
It is also a strong pick for anyone tired of rummaging through a bin of anonymous black hex wrenches trying to figure out which size is which.
Why Color-Coded Wrenches Matter
Small hex wrenches disappear. A 2 mm wrench can blend into a workbench, a grass verge, or a pile of other tools, and many cheap sets do not even mark the size on the tool. The bright color coding on this set solves both problems at a stroke. If a wrench ends up on the ground or tossed into a drawer full of parts, it stands out immediately.

The colors also serve as quick visual indexing, so you can grab the 5 mm orange wrench without reading anything. For anyone working outdoors or in a shared workshop, this alone justifies the choice.
The Ball End and 30-Degree Offset
The ball end is the headline feature here. PB Swiss advertises a 30-degree engagement offset, and in practice the wrench can be turned at an even steeper angle than that. The difference is easy to feel: insert the ball end into a bolt, swing the handle way off-axis, and it still turns smoothly, almost like a universal joint.
In real situations, like a seatpost clamp tucked close to a frame, that offset can be the difference between turning the bolt freely and whacking the wrench into the frame with every quarter turn. A conventional straight ball end typically allows maybe 15 to 20 degrees of useful swing. This set allows a full 30 degrees or more, which is a huge working advantage in tight spots.

The longer arm on each wrench also gives better reach and leverage, while the short arm handles the low-clearance jobs where every millimeter matters. Many fasteners need both: the long end for torque, the short end for speed in cramped spaces.
Fit and Finish Quality
Fit is where this set pulls away from the pack. Compared side by side with budget and mid-tier wrenches, the fit is excellent and snug. Some competing sets show noticeable play, and sloppier tools are exactly the ones that chew up alloy bolts.
The steel appears to be stainless or at least high-chrome, so rust should be less of a concern than with basic black-oxide sets. The wrenches are serialized, and the size markings are bright and legible, though the printed size text itself is still fairly small.

The hex tips are also kept clean and simple, without aggressive anti-rounding grooves. Extra grab features can be useful, but on softer alloy fasteners they can cause problems over time, so a smooth, precise connection was a deliberate and welcome choice here.
Things to Consider Before Buying
The set comes in a characteristic PB Swiss plastic holder with plenty of grip, which matters because some harder plastic holders loosen up over years of pulling wrenches in and out. Durability over the long term remains to be seen, but the holder feels well made out of the box.
The size marking text is small, and the color coding, while excellent for visibility, means you cannot mark or tape these tools the way many people customize black wrenches. If you rely on written size labels on every wrench, check the markings suit your eyes.
Buying Advice
When purchased, this set ran around 60 dollars, with a two-set bundle option available at a notably higher price that does not make much sense for most buyers. For a single set, the combination of Swiss manufacturing, precise fit, ball-end flexibility, and color coding makes it easy to recommend over cheaper alternatives.

Compared with the generic sets many of us have accumulated over the years, this is the kind of upgrade you notice on the first job: less play, fewer rounded bolts, and no more hunting for the 2 mm.
Conclusion
The PB Swiss long rainbow metric ball-end hex wrench set delivers on all of its promises: excellent fit, a genuinely useful 30-degree-plus ball-end offset, both long and short reach, and color coding that keeps small tools from vanishing. For bike work and precision fasteners, it is a satisfying, well-engineered set that should last for decades of hard use.
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View more details for PB Swiss Long Rainbow Metric Ball-End Hex Wrench Set