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The Instruments for PGM are made by Ni-Cr alloys on ultra-precision CNC machines. The tool's life expectancy is for more than 30 000 pieces.
| Index of Refraction (Nd) - Nd | ± 0.003 |
| Abbe number - Vd | ± 1.5% |
| Roughness | Ra < 150 nm |
| Scratch-Dig / MIL 13830 / | 80 – 50 |