Thread mills are rotating, multi-point tools that are used to produce internal or external threads. They resemble end mills or drill bits, and may be capable of producing multiple threads with a ...

The key to any type of thread milling is the availability of helical interpolation feature in the control system. This is the absolute must. It is not possible to program a thread milling toolpath ...

Use a tap drill that is at the maximum minor diameter tolerance. Since tapping hard materials produces a lot of heat, coolant isn’t adequate. Coolant doesn’t have enough lubricity to assist the tap.