EDC and stationery have more of an overlap than you think. EDC multitools help you deconstruct objects physically, stationery helps you do the same creatively on paper. Making notes as you fix a product go hand in hand. Creating an engineering schematic while reverse-engineering a gadget go hand in hand. One uses stationery, the other uses EDC… so rather than separate them, Ideaspark decided to combine them with the Prule – a fusion of a protractor, ruler, and a precision craft knife all in one incredibly sleek package.
The Prule may function primarily as a stationery instrument, but it isn’t designed like one. Machined from Grade 5 Titanium, the Prule outlasts any plastic or metal ruler you’d have ever owned in your lifetime. It’s well-designed, grippy, ruthlessly efficient, compact, and robust enough to last generations. Civilizations might come to an end but the Prule won’t.
Designer: Ideaspark
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The Prule tries to achieve multiple things, and succeeds thanks to two things – a good vision and great execution. Your stationery tool is effective when it needs to be, and just in case you need yourself an EDC blade, the magnetic Xacto knife pops right out, giving you something to cut with, whether it’s a delivery parcel, a piece of paper, a material for a craft project, or even food. Want your EDC to serve more of a purpose, a glass bead breaker on the top of the Prule lets you strike to shatter through reinforced glass, making the Prule perfect for regular or emergency scenarios.
The choice of Gr5 titanium wasn’t arbitrary. Known for its durability and lightweight properties, it ensures the Prule holds up under pressure without being cumbersome to carry. The magnetic fold, sleek and compact, transforms it into a pocket-sized powerhouse that’s as easy to store as it is to deploy. It fits neatly into your workflow, whether you’re a designer tracing lines, an architect marking dimensions, or a DIY enthusiast crafting your next project.
Opening it reveals more than a simple measuring tool. The hinge serves as a precise protractor, locking smoothly into set positions for common angles. The click as it snaps into place feels deliberate, almost mechanical, and makes quick work of drawing or measuring angles. Paired with laser-etched scales in both metric and imperial, reading measurements becomes effortless. Every mark is crisp, visible even in dim light, thanks to the tritium slots built into the design.
Using the Prule feels intuitive, but its design is anything but simple. The angled surface, for instance, aligns perfectly with your line of sight, making measurements more comfortable. The grip feels natural, the thickened edges adding stability during use. These aren’t afterthoughts; they’re deliberate choices made to ensure the tool fits seamlessly into your hand and your tasks, no matter how intricate.
The knife might play a small part in the Prule’s working, but it’s pretty much the star of the show. Designed to slip right into the Prule when not in use, it stays sheathed to keep your hands protected from its sharp scalpel blade. The blade, made from surgical steel, can cut through everything from paper to soft materials like leather or plastics. It’s the perfect craft knife – there when you need it, gone when you don’t.
Plus, the fact that the Prule uses a scalpel blade makes it infinitely reusable. When the blade dulls or breaks, you don’t need to sharpen it (as you would with most regular knives). Just ditch the old blade for a new one and you’re good to go. Scalpel blades come cheap and in packs of 5 or 10. In the end, it’s a lot more sustainable to replace a blade than to ditch an entire knife because it’s dull or broken. Moreover, throw the blade away before you travel and the Prule is suddenly TSA friendly too!
The name Prule, however, is a portmanteau of its two distinct features – the protractor, and the ruler. With a folding design, the Prule either sits shut at 10cm in length (3.9 inches), or opens up to measure 20cm long or 7.8 inches. In the process of opening, the Prule reveals its function as a protractor. Etched markings on its pivot joint let you hit 15° increments with a fair amount of accuracy, making it perfect for measuring angles, making schematics, drawing perspective diagrams, etc. Whether you’re an architect, designer, engineer, woodworker, or any sort of creative/craftsperson, this comes in fairly handy.
Of course, the Prule comes with both imperial and metric markings, making it fairly universal. Its slim design makes it easy to measure depth too, simply by inserting it into objects like you would a depth rod on a set of calipers.
From its foldable design to its versatility as a depth-measuring tool, the Prule adapts to its user. Its ceramic bead breaker adds a layer of emergency preparedness, while its customizable features—like slots for luminous vials and optional engraving—make it uniquely yours. Whether clipped to a lanyard or carried loose, it becomes a constant companion, ready for anything from precision tasks to unplanned challenges.
It isn’t common to see EDC and stationery collide so perfectly, although it does feel like a match made in heaven with the Prule. Use it in a workshop, a classroom, a studio, outdoors, or even in an emergency. Having a ruler/scale, a knife, a protractor, and a glass breaker all in one tool feels like a motley crew of tools that can either serve their individual purposes well, or come together to form something that’s greater than the sum of its parts. The Prule starts at a discounted $69, and ships globally with a set of 10 spare scalpel blades.
Click Here to Buy Now: $69 $99 (30% off) Hurry, only 40 hours left!
