Precision in the Grind: Crafting a Journeyman Test Blade

There is a specific kind of pressure that comes with a test blade. Whether you are aiming for a JS Journeyman status or simply trying to perfect a challenging new geometry, the stakes are always high. Making a knife isn't just about the heat treat; it's about the meticulous geometry, the patience in the grind, and the flawless fit of every component.

In this detailed look at knifemaking, we watch a master knifemaker tackle his second JS test knife. While the core challenge is keeping the blade functional and flawless for the judges, the process itself is a masterclass in precision bladesmithing—a journey that takes us from roughing out the tang to the final, polished pin.

The Science of the Grind: Precision and Geometry

The journey begins with the tang. To ensure the blade can handle the stresses of a field test, the initial step is often tapering the tang using a surface grinder. This isn't brute force; it's gentle, controlled machining, taking off only half a thousandth of an inch at a time. This stage requires the focused attention of an artisan, treating the metal almost like a delicate piece of machinery.

Next comes the plunge grind. The knifemaker uses simple wood blocks as crucial reference points, ensuring that the grind doesn't over-cut or become inconsistent. This demonstrates a fundamental principle in knifemaking: setting clear boundaries to achieve perfect symmetry. Following this, the focus shifts to the blade edge geometry. This knife is designed for more than just cutting vegetables; it needs to handle heavy-duty chopping in the field, requiring specific, robust thickness that can hold up to impact.

The standout feature, of course, is the convex edge. Achieving this curve down to the apex requires extreme precision and patience. It’s a careful, controlled process that defines the blade's cutting profile. After the initial roughing and grinding, the knifemaker moves into the critical stages of hand sanding, working up the grits from 220 all the way to 600. This smooths out the grind marks, giving the finished blade a beautiful, satin polish.

From Ingot to Handle: The Art of Fit

A knife is only as good as its whole. The handle construction is where the artistry meets the engineering. Here, the knifemaker demonstrates the skill of incorporating varied materials: a high-carbon steel tang for the backbone, and a beautiful piece of Honduran Rosewood burl for the scales. To enhance both aesthetics and functionality, brass inserts are used. These inserts are not just decorative; they provide a durable, pliable surface that makes the subsequent fitting of bolsters easier and cleaner.

The process of fitting the handle is meticulous. The knifemaker takes care to relieve the inside of the scales, ensuring a perfect, snug fit against the tang. The pins are drilled through the brass and high-carbon steel, securing the scales to the tang. The careful use of epoxy and temporary pins ensures that the entire assembly remains solid and true while the final touches are applied.

The end result is more than just a functional EDC knife; it is a piece of functional art. The combination of robust, field-ready steel with the organic beauty of the exotic wood and polished brass tells a story of skill, dedication, and deep respect for the craft.

Your Path into the Forge

Whether you are an established bladesmith mastering the perfect convex grind, a collector admiring the rich patina of Damascus, or simply someone who loves the deep history of the blade, the Rogue Blades community is for you. If the technical details of tangs, bolsters, and heat treating have sparked your interest, don't just watch—participate.

The knowledge shared in these videos is only the beginning. We encourage you to find a Blade Angel near you, take a hands-on workshop, or list your custom commission. The forge awaits.