| Inverse drill (ID) series | |||||
| D (mm) | L (mm) | D (mm) | L (mm) | D (mm) | L (mm) |
| 3.20 | 12.0 | 4.35 | 12.0 | 5.50 | 12.0 |
| 3.25 | 12.0 | 4.40 | 12.0 | 5.55 | 12.0 |
| 3.30 | 12.0 | 4.45 | 12.0 | 5.60 | 12.0 |
| 3.35 | 12.0 | 4.50 | 12.0 | 5.65 | 12.0 |
| 3.40 | 12.0 | 4.55 | 12.0 | 5.70 | 12.0 |
| 3.45 | 12.0 | 4.60 | 12.0 | 5.75 | 12.0 |
| 3.50 | 12.0 | 4.65 | 12.0 | 5.80 | 12.0 |
| 3.55 | 12.0 | 4.70 | 12.0 | 5.85 | 12.0 |
| 3.60 | 12.0 | 4.75 | 12.0 | 5.90 | 12.0 |
| 3.65 | 12.0 | 4.80 | 12.0 | 5.95 | 12.0 |
| 3.70 | 12.0 | 4.85 | 12.0 | 6.00 | 12.0 |
| 3.75 | 12.0 | 4.90 | 12.0 | 6.05 | 12.0 |
| 3.80 | 12.0 | 4.95 | 12.0 | 6.10 | 12.0 |
| 3.85 | 12.0 | 5.00 | 12.0 | 6.15 | 12.0 |
| 3.90 | 12.0 | 5.05 | 12.0 | 6.20 | 12.0 |
| 3.95 | 12.0 | 5.10 | 12.0 | 6.25 | 12.0 |
| 4.00 | 12.0 | 5.15 | 12.0 | 6.30 | 12.0 |
| 4.05 | 12.0 | 5.20 | 12.0 | 6.35 | 12.0 |
| 4.10 | 12.0 | 5.25 | 12.0 | 6.40 | 12.0 |
| 4.15 | 12.0 | 5.30 | 12.0 | 6.45 | 12.0 |
| 4.20 | 12.0 | 5.35 | 12.0 | 6.50 | 12.0 |
| 4.25 | 12.0 | 5.40 | 12.0 | ||
| 4.30 | 12.0 | 5.45 | 12.0 | ||
Drilling of mounting and supporting holes in all PCB boards.
Above shank diameters are 3.175 mm (1/8”), overall length 38.1 mm.
Special sizes and flute lengths on request.
