Ka whakamahia ngā mata kani porowhita CERMET ki ngā mīhini tūmau hei tapahi i ngā rauemi totoka, i ngā maitai ngawari me ngā maitai waro iti me te kaha kume tae atu ki te 850 N/mm3. Kaua te maitai kore waikura e tapahia ki tēnei taputapu. Koinei te taputapu tapahi tika mō ngā mīhini pēnei i a Tsune, Amada, RSA, Rattunde, Everising, me Kasto.
1. He mea kawemai ngā pito o te kirikiri SUMIMOTO mai i Hapani, he ātete ki te pāmahana me te waikura, he roa ake te ora mahi.
2. He mea kawemai mai i Hapani te tinana maitai, he tapahi pumau, kāore he piko.
3. He whiri hanawiti umicore nō Belgium, ātete ki te pānga, kāore hoki he niho whati.
4. Mā tā mātou tikanga huri taha motuhake, ka piki ake te taratara o te taha mā te 30%.
| Diameter | Niho Nama | Whānui o te niho | Te matotoru o te maitai | poka | Koki tapahi | Āhua niho | Pūwāhi |
| 160 | 48 | 1.8 | 1.5 | 32 | 5 | s | 2/9/50 |
| 250 | 72 | 2.0 | 1.75 | 32 | 0 | s | 2/11/63 |
| 280 | 72 | 2.0 | 1.75 | 32 | 0 | s | 2/11/63 |
| 285 | 60 | 2.0 | 1.75 | 32 | 0 | s | 2/11/63 |
| 285 | 80 | 2.0 | 1.7 | 32 | 0 | s | 2/11/63 |
| 360 | 60 | 2.6 | 2.25 | 40 | 0 | s | 2/11/90 |
| 360 | 80 | 2.6 | 2.25 | 40 | 0 | s | 2/11/90 |
| 460 | 60 | 2.7 | 2.25 | 50 | 0 | s | 2/11/90 |
| 460 | 80 | 2.7 | 2.25 | 50 | 0 | s | 2/11/90 |
| 255 | 100 | 2.0 | 1.6 | 25.4 | 10 | nm | Te tapahi rino |