| ND:Natural diamond |
| SD:Synthesized diamond |
SDC:Metal covered with
synthesized diamond |
| CBN:Cubic Boron Nitride |
| CBNC:Metal covered with CBN |
| (Can be expressed by B) |
|
| 36 |
240 |
1000 |
| 46 |
280 |
1500 |
| 60 |
320 |
2000 |
| 70 |
400 |
2500 |
| 80 |
500 |
3000 |
| 100 |
600 |
4000 |
| 120 |
700 |
5000 |
| 150 |
800 |
8000 |
| 180 |
1000 |
15000 |
|
| ND |
|
| NC |
soft |
| NA |
|
| RE |
|
| RC |
↑ |
| RA |
|
| RS |
|
| RP |
|
| RNA |
Middle
|
| RN |
|
| RL |
|
| PK |
|
| PN |
↓ |
| PH |
|
| RH |
|
| RI |
hard |
| RJ |
|
| RV |
|
|
| 25 |
low |
| 50 |
|
| 75 |
↑ |
| 100 |
|
| 125 |
|
| 150 |
↓ |
| 175 |
|
| 200 |
High |
|
| B:Resin |
| V:Ceramics |
| M:Metal |
| P:Electroplate |
|
| 2.50mm |
| 3.50mm |
| 5.50mm |
| 10.50mm |
|
