Keyed Industrial Drill Chucks
The Jacobs®Plain Bearing Chuck is the world's most widely used for medium or heavy duty portable, bench or floor mounted power tools. This industrial quality chuck with fully hardened and ground working components, offers exceptionally high accuracy, gripping power & durability.
FeaturesJaws centre-ground for absolute straightness and alignment.
Through-hardened Sleeve teeth, hardened nose and keyholes ensure outstanding wear resistance.
One piece sleeve eliminates crack between driving teeth often found in other designs.
Each chuck 100% inspected for performance and precision.

| Model No. | Part No. | Capacity Range mm | Mount | Key No. | Closed Length | Open Length | Sleeve Dia. |
| 0 | 6200 | 0.711 - 4 | 0JT | K0 | 37 | 28 | 221.6 |
| 0B5/16 | 6204 | 0.711 - 4 | 5/16-24 | K0 | 39 | 30 | 22 |
| 1A | 6206 | 0.711 - 6.5 | 1JT | K1 | 49 | 39 | 28.4 |
| 1B3/8 | 6208 | 0.711 - 6.5 | 3/8-24 | K1 | 50 | 40 | 28 |
| 7BA3/8 | 6255 | 0.711 - 6.5 | 3/8-24 | K7 | 57 | 44 | 34 |
| 2A | 6214 | 0.711-10 | 2JT | K2 | 71 | 55 | 42.4 |
| 2BA3/8 | 6219 | 0.711 - 10 | 3/8-24 | K2 | 71 | 55 | 42.4 |
| 31-01 | 14697 | 0.711 - 10 | 1JT | K30 | 63 | 51 | 36.1 |
| 31-B12 # | 14699 | 0.711-10 | BB12 | S2 | 63 | 51 | 37.6 |
| 31-02 | 14698 | 0.711 - 10 | 2JT | K30 | 63 | 51 | 36.1 |
| 41BA3/8 | 30728 | 0.711 - 10 | 3/8-24 | K30 | 63 | 51 | 36.3 |
| 41BA1/2 | 31090 | 0.711-10 | 1/2-20 | K30 | 63 | 51 | 36.3 |
| 32BA1/2 | 8859 | 0.711 - 10 | 1/2-20 | K32 | 77 | 59 | 45 |
| 34-02 | 14442 | 0.711 - 13 | 2JT | K3 | 89 | 70 | 51.8 |
| 34-06 | 6295 | 0.711 - 13 | 6JT | K3 | 89 | 70 | 51.8 |
| 34-33 | 14445 | 0.711 - 13 | 33JT | K3 | 89 | 70 | 51.8 |
| 37-B16 # | 14446 | 0.711-13 | B16 | K32 | 80.3 | 66 | 46.8 |
| 33 | 6279 | 2 - 13 | 33JT | K32 | 82 | 64 | 45.5 |
| 33BA1/2 | 6287 | 2 - 13 | 1/2-20 | K32 | 82 | 64 | 45.5 |
| 33BA3/8 | 6283 | 2 - 13 | 3/8-24 | K32 | 82 | 64 | 45.5 |
| 33BA5/8 | 6289 | 2-13 | 5/8-16 | K32 | 82 | 64 | 45.5 |
| 3A | 6223 | 3 - 16 | 3JT | K3 | 97 | 73 | 58.4 |
| 4C# | 6224 | 3-16 | 6JT | S3 | 94 | 76 | 56 |
| 4D# | 6225 | 3 - 16 | B16 | S3 | 94 | 76 | 56 |
| 3B5/8 | 6232 | 3 - 16 | 5/8-16 | K3 | 97 | 73 | 58 |
| 35B1/2 | 14723 | 4-16 | 1/2-20 | K3 | 89 | 70 | 52 |
| 36 | 6309 | 5 - 20.3 | 3JT | K4 | 103 | 80 | 64.5 |
| 36B3/4 | 6316 | 5 - 20.3 | 3/4-16 | K4 | 105 | 81 | 65 |
| 36B5/8 | 6314 | 5 - 20.3 | 5/8-16 | K4 | 105 | 81 | 65 |
BA models are drilled and countersunk for retaining screw, necessary for reversible tools.
Note - models marked with a # are not Jacobs® brand as Jacobs® do not manufacture these mounts. They are a good quality industrial chuck but to ensure Jacobs® quality we recommend purchasing standard Jacobs® sizes & mounts.
