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				| 1. | What is value of surface finish achieved, when we use the abrasive of grit number 240? | 
| A. | 0.01 - 0.08 µm | 
| B. | 0.08 - 0.13 µm | 
| C. | 0.13 - 0.25 µm | 
| D. | 0.25 - 0.38 µm | 
| Answer» E. | |