Manufacturing And Production Technology
The grooving is an operation of

Enlarging the end of a hole cylindrically
Beveling the extreme end of a workpiece
Reducing the diameter of a workpiece over a very narrow surface
Embossing a diamond shaped pattern on the surface of a workpiece

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Manufacturing And Production Technology
Threading is an operation of

Cutting helical grooves on the external cylindrical surface
Smoothing and squaring the surface around a hole
Sizing and finishing a small diameter hole
Producing a hole by removing metal along the circumference of a hollow cutting tool

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