| Code | Model | Size / mm | Hole Dept (Max.) | No.of Sizes |
|---|---|---|---|---|
| 633801 | ST-1 | 4, 5, 6, 7, 8, 9, 10, 11, 12 MM | 3mm | 9 |
| 633802 | ST-2 | 6, 8, 10, 12, 14, 16, 18 MM | 5mm | 7 |
| 633803 | ST-3 | 6, 9, 11, 13, 15, 17, 19, 21, 24, 27, 30, 33 MM | 3mm | 12 |
| 633804 | ST-4 | 6, 9, 12, 15, 18, 21, 24, 27, 30, 32, 34, 36, 38, 40, 42 MM | 3mm | 15 |
