Tool targeted at auto industry puts threads in aluminum and other soft metals. A few years ago, engineers and management at Emuge Corp., a leading maker of taps, drills, and other rotary tools, ...

A new tooling system produces threaded holes in all types of sheet metal, eliminating the need for secondary tapping operations or additional fasteners. Developed by Mate Precision Tooling, Anoka, ...

giving me a hard time. I could not apply too much force for fear of breaking the whole bolt, and I knew I could not use a torch to heat it. Here are some suggestions I found for loosening the threads.