This Tiny Bottle Opener Is Actually a Hardcore EDC Multi-Tool in Disguise

Prometheus Design Werx resurrects a fan-favorite titanium titan designed for leisure and emergency use alike.

Prometheus Design Werx

Published August 21, 2025

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You don’t necessarily need a massive, 20+ function folding multi-tool in your everyday carry loadout. If you know where to look, you can find something much more reasonably sized that still boasts all the functions you need for daily life and emergencies alike.

Take the resurrected Prometheus Design Werx SPD BoB Tool, for example. This tiny, one-piece multi-tool sports a surprisingly comprehensive set of functions that could be perfect for the right person.

A silver-colored metal multi-tool with a large circular hole, three smaller circular holes, and a small rectangular hole. It has a design resembling an octopus engraved on it and features jagged edges on one side. The tool is placed on a wooden surface framed by a silver metallic border. — The SPD BoB Tool is made from a single piece of solid titanium.

Beat ’em to the punch

This isn’t the first time that PDW has offered this tool. However, it has been defunct for some time. This revival brings it back in its original form, which was pretty perfect for what it was.

The “BoB” in the name stands for “Break or Beer,” which is a reference to two of this tool’s chief capabilities. First and foremost, it can be used as a bottle opener — that one’s obvious.

A metallic multi-tool with a large circular hole, three smaller circular holes, a rectangular slot, and a hexagonal hole with six small notches around it. The tool has a curved, ergonomic shape with a textured edge on one side of the large circular hole. The surface appears matte and the tool is set against a solid light purple background. — This one-piece multi-tool is deceptively jam-packed with functionality.

But the second part is focused on emergency use — the tool was designed with first responders, like EMTs, in mind. See that little bump on the end of the finger ring? That’s a tungsten carbide ball made for glass breaking.

But those are just two of its many functions. Others include an oxygen tank wrench (another emergency-focused feature), a pocket driver slot, a 10mm wrench, lashing holes and more.

A silver-colored metal tool with a circular ring handle and a protruding hexagonal bit labeled "T-25." The tool has a flat base with various cutouts and holes, including a curved hook-like feature on one side. The background is a solid muted purple color. — Yes, that’s a hex bit driver pocket on the tool’s underside.

Titanic toughness

The BoB Tool’s array of features is a lot more impressive when you realize it has no moving parts whatsoever. In fact, it’s made out of a single piece of solid titanium.

That means you need not worry about seams, welds or any other structural weaknesses when putting it through its paces.

The tool’s center slot is an oxygen tank wrench.

Prometheus Design Werx

It also means the tool is tiny and lightweight. In fact, it measures just 2.35 inches on its longest side (that’s about the same as a house key). It’s also only 0.25 inches deep.

That small stature also means it’s really easy to pop it onto your keychain, slip it into your pocket or whatever else. It’s also perfectly sized to fit into the palm of your hand, which makes using the finger ring for punching (either as a glass-breaker or a self-defense tool) comfortable and intuitive.