| Standard Dimensions of PDC Bit Box (Bit Handler) | |||
| inch | millimeter | inch | millimeter |
| 4 5/8 | 117.5 | 8 1/2 | 215.9 |
| 4 3/4 | 120.6 | 8 3/4 | 222.2 |
| 5 1/4 | 133.3 | 9 1/2 | 241.3 |
| 5 1/2 | 139.7 | 9 5/8 | 244.5 |
| 5 5/8 | 142.9 | 9 7/8 | 250.8 |
| 5 3/4 | 146.1 | 10 5/8 | 269.9 |
| 5 7/8 | 149.2 | 11 5/8 | 295.3 |
| 6 | 152.4 | 12 1/4 | 311.1 |
| 6 1/4 | 158.8 | 13 5/8 | 346.1 |
| 6 1/2 | 165.1 | 14 3/4 | 374.6 |
| 6 3/4 | 171.4 | 15 1/2 | 393.7 |
| 7 1/2 | 190.5 | 16 | 406.4 |
| 7 5/8 | 193.7 | 17 1/2 | 444.5 |
| 7 7/8 | 200 | 26 | 660.4 |
