DIY Mechanica on Instagram: "Achieving a perfectly straight tapped thread can be a significant challenge, especially without specialized equipment. I've found a highly effective method that leverages a common coupling nut as a precise guide. The process involves drilling a centered hole through one face of the coupling nut. This modified nut then acts as a template, guiding the tap perpendicular to your workpiece. Simply thread a bolt through the coupling nut to secure it, and proceed with tappi