Are there any non-destructive ways to remove a stripped bolt/screw head with an ordinary hexagonal socket wrench? - Quora
Best "Rounded Nut" Extractor Wrench? Let's Settle This!
Another rounded bolt post. This 15mm bolt feels like soap. The other one came loose easily. I've already put WD40 and even tried hammering a 9/16 12 edged socket on, which just
Pipe wrench vs. Adjustable wrench | Choosing the Right tool
Parts | 36" Heavy-Duty Straight Pipe Wrench | RIDGID Store