Manufacturing And Production Technology
The tool life is said to be over if

All of these
Overheating and fuming due to heat of friction starts
Poor surface finish is obtained
There is sudden increase in cutting forces and power consumption

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Manufacturing And Production Technology
A jig is defined as a device which

Holds and locates a workpiece and guides and controls one or more cutting tools
Holds and locates a workpiece during an inspection or for a manufacturing operation
All of these
Is used to check the accuracy of workpiece

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