Tacray MP1 Multi-Tool Pen Review: A Compact Titanium EDC Upgrade

Introduction

The Tacray MP1 is a bolt-action ballpoint pen built from titanium, with a small twist-off barrel at the rear that accepts a hex bit. It is a genuinely compact multi-tool: pen on one end, functional bit driver on the other, and very little else to get in the way. For anyone who likes carrying one small object that covers a couple of everyday tasks, the idea is immediately appealing.

The MP1 is clearly intended as the first product in a line, and the design leaves obvious room for a future model with onboard bit storage. As it stands, though, this is a simple, focused tool that does a few things well.

First Impressions

Out of the box, the titanium finish is the first thing you notice. The small form factor and the bolt-action mechanism make it feel like a considered, well-executed object rather than a gimmick. The bolt-action operates the cartridge smoothly, and the pen writes like a proper pen, not like a tool that happens to write.

The rear barrel twists on and off to reveal the bit holder. It cinches down on the bit, and the same mechanism is what makes the pocket-carry trick work, which we will come back to later.

What’s in the Box

The MP1 ships with five bits, two of which are identical, so you get four distinct functions:

• A wedge-shaped knife-style bit for cutting tape, cardboard, and opening packages
• A carbide glass breaker on the opposite side of that same bit
• A dual-sided T6/T8 Torx bit
• A small Phillips zero on one side and a slotted driver on the other
• A graphite cone that works as a tiny pencil, paired with a metal stylus tip on the other end

The graphite-and-stylus bit is a nice touch. Ride it graphite-side down and you have both a writing instrument and a stylus that works on many computers and tablets.

Everyday Carry Behavior

There is zero room for onboard bit storage once a bit is seated in the rear barrel. If you want a pen that carries its own spare bits, you are probably waiting for a future MP2 with a longer barrel. As shipped, the MP1 is one bit at a time, chosen before you pocket it.

The pocket-carry design is clever. Because the barrel cinches down on top of a pocket seam, the pen cannot accidentally activate in your pocket, and the bolt-action stays protected. The one caveat: the barrel releases fairly easily, so the bit can come loose if you pull hard or do not cinch it down properly. Most of the time you are pushing in on the bit or dragging the blade, so it is rarely an issue in practice, but it is worth knowing before you buy.

The author of this design clearly expects you to swap bits rather than hoard them, and that is the right mental model for a pen this size.

Real-World Usefulness

The bits that come in the box cover the most likely micro-tasks: tightening a knife pivot with the small Torx, opening a package with the blade, marking something with the graphite tip. If you already carry loose bits, the MP1 accepts them too. A larger T27 Torx bit from a power tool kit seats and cinches in quite solidly, and small Phillips, slotted, or specialized Torx bits all fit the same holder.

That opens up possibilities the standard kit does not mention: step bits, bottle opener bits, whatever else you can find in the right form factor. The holder is the limiting factor in a good way, since it accepts standard small hex bits rather than a proprietary shape.

Things to Consider Before Buying

The light release on the rear barrel is the main trade-off. A snugger fit or a thicker O-ring would inspire more confidence about not losing a bit. Also, if onboard storage matters to you, this first-generation model simply does not have it.

Who Should Buy It

The MP1 suits people who want a small, attractive titanium pen that also handles occasional micro-tasks: package opening, light cutting, tiny screw adjustments, a stylus when needed. It is less suited to anyone who expects a full multi-tool experience, since the bit driver is genuinely small and single-bit at a time.

For knife maintenance and small repairs around the house, the smaller Torx and Phillips bits are the ones you would realistically use most.

Buying Advice

It is available from several locations and, at the time of writing, appeared to be on sale. If the idea of a bolt-action titanium pen with a hidden bit driver appeals to you, the MP1 is a sound, simple execution of that idea. Buy it for the pen first and the bit driver second, and you will not be disappointed.

Conclusion

The Tacray MP1 does not try to be everything at once. It is a well-made titanium bolt-action pen with a clever rear barrel that turns it into a single-bit multi-tool, plus a smart pocket-carry trick that keeps it from firing in your pocket. With a slightly snugger bit retention and a future version with onboard storage, the MP line could be something special. As a first outing, it is a confident, well-thought-out tool.