Note: today's batch is unusually thin — nearly every candidate is a hashtag-spam Short or a "factory compilation" with no narration. This pick is the least bad option, and it is also a Short, but it at least centers on one specific, recognizable smithing problem rather than generic forging B-roll.

Spring steel — typically 5160 or 9260 — is a favorite stock for knifemakers and tool smiths because it is tough, springy, and often available free from old leaf springs or coil springs. The catch is that it arrives curved, and straightening it is not as simple as hammering a mild-steel bar flat. Spring steel work-hardens aggressively and can crack if you try to bend it cold, so the smith has to bring it up to a uniform forging heat (a bright orange, around 1500–1900°F) before applying corrective blows.

The clip shows that workflow: heating a curved spring section, then using the anvil and hammer to walk the curve out. Watch how the smith places the bend over the anvil's edge or sweet spot and strikes the high side of the curve, letting gravity and the anvil do half the work. It is a small but genuinely useful skill if you ever plan to reclaim leaf springs into knife or tool blanks.