The JerryRig Razor Knife

From https://jerryrigknife.com/

Made using an Aluminum-Zinc alloy, The JerryRig Knife uses premium materials to ensure it's the perfect weight and size for both your pockets and your hands. The all metal handle is textured with a tessellated hexagon pattern that gives you a confident grip, and the built-in JerryRigEverything belt clip serves as your constant reminder that Life is a DIY project.

The CLEAR knife is made from Polycarbonate, the same stuff they put inside bullet proof glass.

Of course, even the sharpest blade will eventually become dull. When it comes time to replace the razor blade, you've got nothing to worry about. No proprietary sharp edges here - The JerryRig Knife uses standard stainless steel replacement blades that can be found at any hardware store for pennies, and will swap out in seconds.

Whether you're buying one for yourself or for a friend, make sure the owner can be trusted around sharp objects. Remember: The JerryRig Knife doesn't cost an arm and a leg... but it might cost you a finger if you aren't careful.