Never drill into stuck bolts. Do this instead

Why do mechanics weld broken bolts instead of drilling them out?! 🚀⚙️
When an old, rusty bolt snaps off inside an engine block or exhaust manifold, most amateur mechanics immediately grab a drill and a cheap screw extractor. This is a massive mistake! Drilling hard steel often leads to snapping the brittle extractor tool off inside the hole, permanently ruining the engine block!
In this incredibly satisfying extraction video, a professional mechanic uses intense heat to solve the problem! First, they place a steel sleeve over the broken stud and weld it together. Next, they place a heavy nut over the sleeve and weld the entire assembly completely solid! The extreme thermal shock from the welder instantly breaks the rust bond, allowing the mechanic to easily unscrew the broken bolt with a standard wrench! Watch until the very end to find out the fatal mistake that ruins most engine blocks!