- When using 1/2"G extensions: minimum drill diameter 31 mm.
- When using 5/4"G extensions: minimum drill diameter 51 mm.
| Length mm | Machine connection | Article coed |
| 100 | 1/2''G | BC21100000 |
| 200 | 1/2''G | BC21200000 |
| 300 | 1/2''G | BC21000000 |
| 100 | 5/4''UNC | BC22010000 |
| 200 | 5/4''UNC | BC22020000 |
| 300 | 5/4''UNC | BC22000000 |
| 400 | 5/4''UNC | BC22040000 |