Manufacturing And Production Technology
In a planer

Work is stationary and tool reciprocates
Tool is stationary and work reciprocates
Tool moves over reciprocating work
Tool moves over stationary work

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Manufacturing And Production Technology
Threading is an operation of

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

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