A compact and practical upgrade to my original Skeleton Utility Knife — this new folding version keeps everything you loved, and fixes everything you didn’t.
It’s safer, more convenient, and folds closed so you’ll never lose the cover again.

The Logical Utility Knife is a 100% 3D-printed, snap-together folding box cutter that fits standard Stanley-style blades.
The handle folds into the body for safe storage and includes an integrated tool for blade insertion and removal.

You can even add an optional 10×3 mm magnet insert so it sticks to your workbench, toolbox, or fridge.

• 100% printed — no hardware or fasteners
• Folding design for safety and compact storage
• Compliant blade holder with snap-fit mechanism
• Blade insertion and removal tool built into handle
• Fits standard Stanley utility blades
• Optional 10×3 mm magnet insert
• Compact: 100 mm when folded, 160 mm when open

The blade holder flexes slightly to clamp standard utility blades securely without hardware.
The built-in handle slot doubles as the blade-change tool, making it completely self-contained.
The design folds neatly into itself, keeping both your blade and fingers protected when not in use.

Related Links Scalpel Station Widget - with Auto Blade Removal and Capture Folding Scalpel Pocket Knife v2.1 Folding Scalpel XL v2.1 (for #60 Blades) Skeleton Utility Knife (original version)

Please join the LogicalPlanet Discord community via my linktree to discuss this and any other LogicalPlanet projects, upcoming projects, ideas and anything else related to LogicalPlanet.

https://www.logicalplanet.com/ email me at logicalplanet3d@gmail.com

Revisions and Updates I occasionally update and revise my designs. When I do, I’ll document the changes here. Check back periodically for the latest revision notes or if you’re experiencing any issues with a model.