mo shahid on Instagram: "The video showcases a kerf bending technique where a straight metal pipe is spiral-cut helically, bent into a 90-degree elbow, and hammered smooth, using basic tools like a grinder and mallet. Posted by South African account on December 15, 2025, it received 561,000 views and 1,200 likes within hours, with replies praising its ingenuity and advocating for such vocational training in schools over theoretical subjects. This method, a low-cost alternative to machined elbows