Note: today's candidate pool was almost entirely Shorts and hashtag-spam titles with thin descriptions. This pick is the least bad — it's still a Short, but at least it tackles a concrete, teachable topic instead of a clickbait "amazing trick" reel.

Weld inspection gauges are one of those overlooked corners of fabrication that separate hobbyists from people who can hand a weld to a QC inspector with confidence. This short from NDT Mechanical Tech runs through the common gauges used to verify a finished weld meets spec — including the Bridge Cam gauge, which is the Swiss Army knife of weld measurement (fillet leg length, throat thickness, undercut depth, reinforcement height, and angle of preparation all on one tool).

Even if you never plan to work code welds, knowing what inspectors actually measure changes how you weld. You start to notice your own undercut, your reinforcement profile, whether your fillet legs are even, and whether your bevel angle was actually what the drawing called for. The gauges are also cheap — a Bridge Cam runs around $30 — so this is the rare bit of QC knowledge that's immediately actionable for a home shop.

Channel is small (4,350 subs) and focused on NDT/QC content, which is a useful niche if you're trying to level up beyond just laying beads.