

| 1. | Punch grinder is a tool which can be put on the surface grinding machine for round punches (3m/m-25m/m). It can be ground by putting three rollers of punch grinder, wihtout checking the center. |
| 2. | Accuracy of roller within 0.005m/m whileturning right or left. It can grind punches of outside diameter from 1.5Ø-25Øm/m. |
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