List the advantages and limitations of thread milling.
Advantages;
1.the threads will be smoother and more accurate than those cut in a lathe.
2.Threads can be cut closer to shoulders of work piece.
3.It is a faster method.
4.It is more efficient than cutting threads in a lathe.
Limitations:
1.It is Difficult to produce internal threads.
2.Threads milling cannot be used for making thread with more than 30 helix angle.
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