 
			 
			MCQOPTIONS
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				| 1. | The angle of chamfering for the hexagonal nut with the base is ________ | 
| A. | 30° to 45° | 
| B. | 50° to 65° | 
| C. | 10° to 25° | 
| D. | 60° to 75° | 
| Answer» B. 50° to 65° | |