Manufacturing And Production Technology
The tool may fail due to

All of these
Chipping of the cutting edge
Cracking at the cutting edge due to thermal stresses
Plastic deformation of the cutting edge

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Manufacturing And Production Technology
Jigs are used

For holding the work in milling, grinding, planing or turning operations
To check the accuracy of workpiece
For holding and guiding the tool in drilling, reaming or tapping operations
None of these

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