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Insize Surface Roughness Specimen for identifying and specifying roughness by symbol. The blocks are made of pure nickel and rustproof.
| Machining Method | Roughness (Ra) | Roughness (Rz) | Quantity |
| Flat lapping | 0.05, 0.1, 0.2µm 2, 4, 8µin | 0.55, 1, 1.6µm | 3 pcs |
| Reaming | 0.4, 0.8, 1.6µm 16, 32, 63µin | 3, 6, 10µm | 3 pcs |
| Plain grinding | 0.05, 0.1, 0.2, 0.4, 0.8, 1.6µm 2, 4, 8, 16, 32, 63µin | 0.55, 1, 1.6, 3, 6, 10µm | 6 pcs |
| Horizontal milling | 0.4, 0.8, 1.6, 3.2, 6.3, 12.5µm 16, 32, 63, 125, 250, 500µin | 2.5, 4, 8, 16, 32, 50µm | 6 pcs |
| Vertical milling | 0.4, 0.8, 1.6, 3.2, 6.3, 12.5µm 16, 32, 63, 125, 250, 500µin | 2.5, 4, 8, 16, 32, 50µm | 6 pcs |
| Turning | 0.4, 0.8, 1.6, 3.2, 6.3, 12.5µm 16, 32, 63, 125, 250, 500µin | 2.5, 4, 8, 16, 32, 50µm | 6 pcs |
