Knife Burrs Aren't What You Think [4K]

Have you ever sharpened an edge to a perfect apex, only to spend 20 minutes to an hour fighting a stubborn burr on your strop—and in the end, the knife still feels dull? It is one of the most frustrating roadblocks in knife sharpening, and it happens because we assume all burrs are created equal. They aren't. In this video, we explore the surface of burr exploration left behind by the late Dr. Vadim Kraichuk of Knife Grinders Australia to explore Positive vs. Negative burrs. Using macro photography, we put different abrasives and steels to the test right on the bench. We compare a ductile, lower-hardness Global chef's knife against a modern super-steel like MagnaCut to look directly at the structural differences under the lens. You’ll see exactly why soft steels undergo severe plastic deformation—forming a floppy ribbon that you’ll accidentally polish if you don't raise your angle—and why trying that same high-angle trick on rigid, hard carbide structures like MagnaCut or S90V may instantly round your apex and destroy your edge. We also address the ongoing mystery of why hanging kangaroo tail strops seem to cleanly execute deburring on both materials regardless of the matrix. If you want to stop wasting time on your strops and start mastering repeatable, robust, hair-splitting edges based on material physics, this video may be step one of understanding. ⚠️IMPORTANT SAFETY DISCLAIMER The content on Get Sharp™ is for entertainment and general informational purposes only. Knife sharpening, grinding, and polishing involve sharp edges, high-speed machinery, and powerful tools that can cause serious injury or death if used improperly. Sharpening techniques shown may not be suitable for every knife, steel type, or user skill level. Always wear appropriate personal protective equipment (cut-resistant gloves, eye protection, etc.), work in a safe environment, and follow all manufacturer instructions for tools and equipment. Get Sharp™, its owners, and affiliates are not responsible for any injury, death, property damage, or any loss arising from the use or misuse of information in this video. By watching or attempting any techniques shown, you assume all risk and agree to release Get Sharp from any liability. Video Credits: ‪@CaptJimmysKnifeSharpening‬ ‪@iSharpen‬ ‪@knifegrindersaustralia5158‬ ‪@JSSharpeningnBladeworks‬ ‪@valentinigarageworks‬ ‪@GetSharpUSA‬ Music Credits: Hall of the Mountain King by Kevin MacLeod is licensed under a Creative Commons Attribution 4.0 license. https://creativecommons.org/licenses/...