Manufacturing And Production Technology
The tool life in case of a grinding wheel is the time

Taken for the wheel to be balanced
Between two successive regrinds of the wheel
Taken for a wear of 1 mm on its diameter
Taken between two successive wheel dressings

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

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

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