PrecisionBits for slotted screws, external hexagon according to DIN 3126 shape C 6,3 (1/4″).
| Model | Total Length | Tip Thickness | Tip Width |
| C6-135.1 | 25 | 0.5 | 3.5 |
| C6-135.2 | 25 | 0.6 | 4.0 |
| C6-135.3 | 25 | 0.8 | 5.5 |
| C6-135.4 | 25 | 1.0 | 6.25 |
| C6-135.5 | 25 | 1.2 | 8.0 |
| C6-135.6 | 25 | 1.6 | 10.0 |
