The difference between screw and thread milling cutter?

As an AI language model, I can present some information about screw and thread milling cutter:

Screw milling cutter is a tool specially designed to cut various types of threads such as straight, helical, and tapered threads. It has multiple teeth arranged in a helical form, which allows it to cut the thread into the workpiece. It is commonly used in the production of screws, bolts, and other threaded components.

Thread milling cutter, on the other hand, is also used for cutting threads, but it has a single tooth that rotates around a fixed axis. It is used to produce threads in materials that are difficult to machine, such as hardened steels, titanium, and other alloys. It is also used for producing threads of various shapes and sizes, including Acme threads, ball screws, and buttress threads.

In summary, while both screw and thread milling cutter are used for cutting threads, screw milling cutter has multiple teeth arranged in a helical form, while thread milling cutter has a single tooth that rotates around a fixed axis. Additionally, screw milling cutter is commonly used for producing screws and bolts, while thread milling cutter is used to produce threads in difficult-to-machine materials and different thread shapes and sizes.