Manufacturing And Production Technology
The effect of setting a boring tool above center height leads to

Increase in the effective rake angle and a decrease in the effective clearance angle
Increase in both effective rake angle and effective clearance angle
Decrease in the effective rake angle and an increase in the effective clearance angle
Decrease in both effective rake angle and effective clearance angle

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Manufacturing And Production Technology
Trepanning is an operation of

Sizing and finishing a small diameter hole
Making a cone-shaped enlargement of the end of a hole
Producing a hole by removing metal along the circumference of a hollow cutting tool
Smoothing and squaring the surface around a hole

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