The Jacobs®Ball Bearing Super Chuck has been designed for extra heavy duty drilling applications on drilling machines, jig borers, milling machines, lathes, radials and CNC/NC machining centres.
Features:
Ball Bearing construction maximises gripping force and drilling accuracy.
Through-hardened sleeve teeth plus hardened nose and keyholes provide outstanding wear resistance.
Jaws centre-ground and specially heat treated to ensure high gripping surface hardness.
Each chuck 100% inspected for performance and precision.
| Model No. | Part No. | Capacity Range mm | Mount | Key No. | Closed Length | Open Length | Sleeve Dia. |
| 8-1/2N | 30209 | 0.711 - 6.4 | 2JT* | K30 | 61 | 50 | 40 |
| 11N | 30215 | 0.711 - 10 | 2JT | K32 | 73 | 58 | 49 |
| 114N | 30221 | 0.711 - 13 | 3JT | K3 | 99 | 76 | 62 |
| 16N | 30227 | 3 - 16 | 3JT | K4 | 110 | 83 | 67 |
| 18N | 30233 | 3-19 | 4JT | K4 | 130 | 100 | 77 |
| 20N | 30239 | 10 - 25.4 | 5JT | K5 | 140 | 108 | 93 |