Custom OSF MK2

The OSF, or "Open Source Folder," has always been a knife with a soul and a massive following. It was born from an idea that knifemaking knowledge should be shared, not siloed.

Back in 2010, after countless hours spent researching folding knife mechanisms and lock geometry, I wanted to give back to the community. I set out to translate that knowledge into a solid, proven model. The goal was to create a finished design that could serve as a launchpad for anyone wanting to build their own awesome knife.

We designed the OSF to be built with simple tools—no CNC machine necessary. All an aspiring maker needs is a waterjet-cut blank, a drill, and some taps to start their journey. It's a blueprint for craftsmanship.

The design itself is a testament to functional purity, featuring a versatile modified sheep's foot blade and a meticulously engineered frame. Its single-point rear standoff is robust enough to handle serious stress, yet streamlined to maximize the blade-to-handle ratio.

The OSF is more than a knife. It's our contribution to the craft—an invitation for you to learn, build, and create.

This Specific custom is one of the first 2 prototypes I built as a MK2 version to re-launch the OSF CAD files within the launch of my new online school. Proceeds from this sale go towards building the online school and curriculum. 

"The Hoback Master Class"