Taps and dies are great for cutting new threads or repairing old threads on metals, plastics and other hard materials. Taps cut threads on the inside of holes and dies cut threads on the outside of ...

Tapping screws form mating threads in materials they are driven into. There are two basic types: thread forming and thread cutting. The thread-forming screw displaced material around the pilot hole so ...

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, ...