The Real Reason Your Padlock Has That Tiny Hole at the Bottom
You’ve probably used padlocks for years without thinking twice — on gates, lockers, sheds, bikes, toolboxes. But that tiny little hole at the bottom? It’s not a defect, and it’s not “for the key” either. It’s a hidden design feature that quietly protects what’s inside… and once you know what it really does, you’ll never … Read more