Bearing balls are made from high-carbon chromium steel (usually AISI 52100), which is one of the most sought-after materials in knife-making circles. It holds a razor edge, resists wear, and forges beautifully once you can get past its stubborn round shape. This video follows the full journey of turning a pile of those small spheres into a finished blade.

The tricky part with bearing balls is consolidation: you need to weld them together into a single billet before you can even begin shaping a knife. That means bringing them to a bright orange heat, containing them in a jig or canister, and hammering carefully so they fuse without trapping scale or creating cold shuts. Once forged into a bar, the smith draws it out, profiles the blade, normalizes it, quenches in oil, and tempers.

Watching a smaller channel work through this process is more rewarding than the polished factory clips — you get to see the real challenges of forge welding a difficult material, and the payoff of a finished knife made from what most people would throw in the scrap bin.