MCQOPTIONS
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				| 1. | 
                                    Trepanning is an operation of | 
                            
| A. | Making a cone-shaped enlargement of the end of a hole | 
| B. | Smoothing and squaring the surface around a hole | 
| C. | Sizing and finishing a small diameter hole | 
| D. | Producing a hole by removing metal along the circumference of a hollow cutting tool | 
| Answer» E. | |