A few years ago, engineers and management at Emuge Corp., a leading maker of taps, drills, and other rotary tools, decided it needed a new tool for forming helical threads in lightweight metals and ...

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 ...

Historically, the threading of holes has been a fairly straightforward operation, usually performed close to the end of a part’s machining. Once the holes had been drilled, thread taps of the ...

AmericanMachinist.com reflects the work and aspirations of machine shop owners, managers, operators, and programmers. We examine the practical challenges of machine shop operations; evaluate the new ...

Twist drills do not make accurately sized or good finish holes; a reamer of some type is often used to cut the final size and finish. A reamer will not make the original hole; it will only enlarge a ...