Jacobs® drill chuck arbors
JACOBS® ARBORS AND ADAPTERS
Always specify Jacobs arbors to serve the finest performance from
Jacobs drill and tap chucks.
They are precision ground to our master gauges and guarantee
the finest possible accuracy and fit.
When ordering arbors
Any of the following is correct; Show style and size of the mounting
shank and the model number of the Jacobs chuck to which the arbor
will be fitted.
Example: A #2 Morse taper shank arbor for #34 Jacobs chuck.
Show the style and size of the mounting shank plus the actual
Jacobs taper desired.
Example: A #2 Morse taper shank with a #3 Jacobs taper.
Simply use the part number price in the standard arbor charts
shown below.
Morse Taper to Jacobs® taper
| Cat No. | Shank Taper | Chuck Taper |
| A0100 | 1 MT | J0 |
| A0101 | 1 MT | J1 |
| A0102 | 1 MT | J2 |
| A0106 | 1 MT | J6 |
| A0133 | 1 MT | J33 |
| A0201 | 2 MT | J1 |
| A0202 | 2 MT | J2 |
| A0203 | 2 MT | J3 |
| A0204 | 2 MT | J4 |
| A0206 | 2 MT | J6 |
| A0233 | 2 MT | J33 |
| A0301 | 3 MT | J1 |
| A0302 | 3 MT | J2 |
| A0303 | 3 MT | J3 |
| A0304 | 3 MT | J4 |
| A0305 | 3 MT | J5 |
| A0306 | 3 MT | J6 |
| A0333 | 3 MT | J33 |
| A0402 | 4 MT | J2 |
| A0403 | 4 MT | J3 |
| A0404 | 4 MT | J4 |
| A0405 | 4 MT | J5 |
| A0406 | 4 MT | J6 |
| A0433 | 4 MT | J33 |
| A0503 | 5 MT | J3 |
| A0504 | 5 MT | J4 |
| A0505 | 5 MT | J5 |
Straight Shank to Jacobs® taper
| Cat No. | Shank Diameter | Shank Length | Chuck Taper |
| A4000 | 1/2" | 2-1/2" | J0 |
| A4001 | 1/2" | 2-1/2" | J1 |
| A4002 | 1/2" | 2-1/2" | J2 |
| A4003 | 1/2" | 2-1/2" | J3 |
| A4006 | 1/2" | 2-1/2" | J6 |
| A4033 | 1/2" | 2-1/2" | J33 |
| A4101 | 5/8" | 2-1/2" | J1 |
| A4102 | 5/8" | 2-1/2" | J2 |
| A4103 | 5/8" | 2-1/2" | J3 |
| A4106 | 5/8" | 2-1/2" | J6 |
| A4133 | 5/8" | 2-1/2" | J33 |
| A4202 | 3/4" | 3" | J2 |
| A4203 | 3/4" | 3" | J3 |
| A4206 | 3/4" | 3" | J6 |
| A4233 | 3/4" | 3" | J33 |
| A4403 | 1" | 3" | J3 |
| A4406 | 1" | 3" | J6 |
R8 Bridgeport Taper to Jacobs® taper
| Cat No. | Chuck Mount |
| A0802 | J2 |
| A0803 | J3 |
| A0804 | J4 |
| A0806 | J6 |
| A0833 | J33 |
Thread Shank to Morse Taper arbors
| Cat No. | Morse Taper | Thread |
| A0261 | MT2 | 3/8-24 |
| A0264 | MT2 | 1/2-20 |
| A0268 | MT2 | 5/8-16 |
V-Flange CAT and BT Taper
