A tool housing and method for making the same are disclosed. The tool housing can include upper and middle portions that are fully machined and coupled to one another. The tool housing can also include a lower housing that is partially machined, coupled to the remaining housing portions, and then fully machined. In doing so, the machining operation is eased and the portions of the housing are better aligned with one another.

A tool housing and method for making the same are disclosed. The tool housing can include upper and middle portions that are fully machined and coupled to one another. The tool housing can also include a lower housing that is partially machined, coupled to the remaining housing portions, and then fully machined. In doing so, the machining operation is eased and the portions of the housing are better aligned with one another.

Opposing undercut surfaces may be formed on a helical thread disposed about a shaft of a fastener by: rotating the shaft; translating a first cutting head medially toward the shaft along a first oblique trajectory of a first oblique cutting surface of the first cutting head; translating the first cutting head along a length of the shaft to form at least one of the opposing undercut surfaces on the helical thread; translating a second cutting head medially toward the shaft along a second oblique trajectory of a second oblique cutting surface of the second cutting head; and translating the second cutting head along a length of the shaft to form at least another one of the opposing undercut surfaces on the helical thread.

Opposing undercut surfaces may be formed on a helical thread disposed about a shaft of a fastener by: rotating the shaft; translating a first cutting head medially toward the shaft along a first oblique trajectory of a first oblique cutting surface of the first cutting head; translating the first cutting head along a length of the shaft to form at least one of the opposing undercut surfaces on the helical thread; translating a second cutting head medially toward the shaft along a second oblique trajectory of a second oblique cutting surface of the second cutting head; and translating the second cutting head along a length of the shaft to form at least another one of the opposing undercut surfaces on the helical thread.

A tooling assembly for a lathe machine includes a tool platform configured to be mounted on the lathe machine, a milling tool holder fixedly secured to the tool platform and workable to releasably secure a thread milling tool therein, and a milling tool drive. The milling tool drive is operatively connected to the milling tool holder and operable to rotate the milling tool holder independently of a work holder to mill threads on the workpiece when a pipe thread milling tool is secured in the milling tool holder. Computer numerical control threading lathes and methods of milling threads in tubular workpieces are also described.

A tooling assembly for a lathe machine includes a tool platform configured to be mounted on the lathe machine, a milling tool holder fixedly secured to the tool platform and workable to releasably secure a thread milling tool therein, and a milling tool drive. The milling tool drive is operatively connected to the milling tool holder and operable to rotate the milling tool holder independently of a work holder to mill threads on the workpiece when a pipe thread milling tool is secured in the milling tool holder. Computer numerical control threading lathes and methods of milling threads in tubular workpieces are also described.