| Code | Description | D | D1 | H | B | Ratio | Dial scale(norm) |
|---|---|---|---|---|---|---|---|
| SK60 R □□□□ | SK60 | 57.5 | 54.5 | 31 | 9.5 |
10:1, 12:1, 15:1, 18:1, 20:1, 24:1, 25:1, 30:1, 36:1 |
0-10,0-12,0-15, 0-18,0-20,0-24, 0-25,0-30,0-36 |
| SK80R □□□□ | SK80 | 81.5 | 78.5 | 37 | 11.5 |
10:1, 12:1, 15:1, 18:1, 20:1, 24:1, 25:1, 30:1, 36:1 |
0-10,0-12,0-15, 0-18,0-20,0-24, 0-25,0-30,0-36 |
| SK100 R □□□□ | SK100 | 107 | 100 | 36 | 15 | 45:1 | 0-45 |