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Drill Chuck Mount Type
For Drill Chuck Taper Number
For Machine Spindle Type
System of Measurement
Chuck Type
Bit Shank Size
For Drill Chuck Jacobs Taper Diameter
For Holding
Overall Length
Length
DFARS Specialty Metals
Export Control Classification Number (ECCN)
Component
Material
Shank Size
For Tool Drive Direction
Morse Taper to Jacobs Taper Drill Chuck Arbors
 |
For Machine Spindle Taper No. | For Drill Chuck Taper No. | Overall Lg. | Material | Each | |||
|---|---|---|---|---|---|---|---|
Made in the U.S. | |||||||
| Morse 1 | Jacobs 0 | 3 3/16" | Hardened Steel | 2811A14 | 000000 | ||
| Morse 1 | Jacobs 1 | 3 25/64" | Hardened Steel | 2811A15 | 00000 | ||
| Morse 1 | Jacobs 2, Jacobs 2s | 3 5/8" | Hardened Steel | 2811A16 | 00000 | ||
| Morse 1 | Jacobs 3 | 4 1/64" | Hardened Steel | 2811A17 | 00000 | ||
| Morse 1 | Jacobs 33 | 3 25/32" | Hardened Steel | 2811A21 | 00000 | ||
| Morse 2 | Jacobs 0 | 3 25/32" | Hardened Steel | 2811A22 | 00000 | ||
| Morse 2 | Jacobs 1 | 3 63/64" | Hardened Steel | 2811A23 | 00000 | ||
| Morse 2 | Jacobs 2, Jacobs 2s | 4 7/32" | Hardened Steel | 2811A24 | 00000 | ||
| Morse 2 | Jacobs 3 | 4 39/64" | Hardened Steel | 2811A25 | 00000 | ||
| Morse 2 | Jacobs 4 | 5 3/64" | Hardened Steel | 2811A26 | 00000 | ||
| Morse 2 | Jacobs 6 | 4 3/8" | Hardened Steel | 2811A28 | 00000 | ||
| Morse 2 | Jacobs 33 | 4 17/64" | Hardened Steel | 2811A31 | 00000 | ||
| Morse 3 | Jacobs 1 | 4 47/64" | Hardened Steel | 2811A32 | 00000 | ||
| Morse 3 | Jacobs 2, Jacobs 2s | 4 31/32" | Hardened Steel | 2811A33 | 00000 | ||
| Morse 3 | Jacobs 3 | 5 23/64" | Hardened Steel | 2811A34 | 00000 | ||
| Morse 3 | Jacobs 4 | 5 51/64" | Hardened Steel | 2811A35 | 00000 | ||
| Morse 3 | Jacobs 5 | 5 29/32" | Hardened Steel | 2811A61 | 00000 | ||
| Morse 3 | Jacobs 6 | 5 1/8" | Hardened Steel | 2811A37 | 00000 | ||
| Morse 3 | Jacobs 33 | 5 1/8" | Hardened Steel | 2811A38 | 00000 | ||
| Morse 4 | Jacobs 2, Jacobs 2s | 6" | Hardened Steel | 2811A39 | 00000 | ||
| Morse 4 | Jacobs 3 | 6 3/8" | Hardened Steel | 2811A41 | 00000 | ||
| Morse 4 | Jacobs 4 | 6 13/16" | Hardened Steel | 2811A42 | 00000 | ||
| Morse 4 | Jacobs 5 | 6 15/16" | Hardened Steel | 2811A43 | 00000 | ||
| Morse 4 | Jacobs 6 | 6 5/32" | Hardened Steel | 2811A44 | 00000 | ||
| Morse 4 | Jacobs 33 | 6 5/32" | Hardened Steel | 2811A45 | 00000 | ||
| Morse 5 | Jacobs 3 | 7 9/16" | Hardened Steel | 2811A47 | 00000 | ||
| Morse 5 | Jacobs 4 | 8 1/8" | Hardened Steel | 2811A48 | 00000 | ||
| Morse 5 | Jacobs 5 | 8 1/8" | Hardened Steel | 2811A49 | 00000 | ||
Made Outside the U.S. | |||||||
| Morse 1 | Jacobs 0 | 3 7/64" | Hardened Steel | 9255N13 | 00000 | ||
| Morse 1 | Jacobs 1 | 3 11/32" | Hardened Steel | 9255N14 | 00000 | ||
| Morse 1 | Jacobs 2, Jacobs 2s | 3 35/64" | Hardened Steel | 9255N15 | 00000 | ||
| Morse 1 | Jacobs 6 | 3 45/64" | Hardened Steel | 9255N17 | 00000 | ||
| Morse 1 | Jacobs 33 | 3 45/64" | Hardened Steel | 9255N16 | 00000 | ||
| Morse 2 | Jacobs 0 | 3 45/64" | Hardened Steel | 9255N18 | 00000 | ||
| Morse 2 | Jacobs 1 | 3 15/16" | Hardened Steel | 9255N19 | 00000 | ||
| Morse 2 | Jacobs 2, Jacobs 2s | 4 9/64" | Hardened Steel | 9255N21 | 00000 | ||
| Morse 2 | Jacobs 3 | 4 31/64" | Hardened Steel | 9255N24 | 00000 | ||
| Morse 2 | Jacobs 4 | 4 59/64" | Hardened Steel | 9255N25 | 00000 | ||
| Morse 2 | Jacobs 6 | 4 1/4" | Hardened Steel | 9255N23 | 00000 | ||
| Morse 2 | Jacobs 33 | 4 1/4" | Hardened Steel | 9255N22 | 00000 | ||
| Morse 3 | Jacobs 1 | 4 41/64" | Hardened Steel | 9255N26 | 00000 | ||
| Morse 3 | Jacobs 2, Jacobs 2s | 4 7/8" | Hardened Steel | 9255N27 | 00000 | ||
| Morse 3 | Jacobs 3 | 5 15/64" | Hardened Steel | 9255N31 | 00000 | ||
| Morse 3 | Jacobs 4 | 5 43/64" | Hardened Steel | 9255N32 | 00000 | ||
| Morse 3 | Jacobs 5 | 5 55/64" | Hardened Steel | 9255N33 | 00000 | ||
| Morse 3 | Jacobs 6 | 5" | Hardened Steel | 9255N29 | 00000 | ||
| Morse 3 | Jacobs 33 | 5" | Hardened Steel | 9255N28 | 00000 | ||
| Morse 4 | Jacobs 2, Jacobs 2s | 5 55/64" | Hardened Steel | 9255N34 | 00000 | ||
| Morse 4 | Jacobs 3 | 6 7/32" | Hardened Steel | 9255N37 | 00000 | ||
| Morse 4 | Jacobs 4 | 6 21/32" | Hardened Steel | 9255N38 | 00000 | ||
| Morse 4 | Jacobs 5 | 6 27/32" | Hardened Steel | 9255N39 | 00000 | ||
| Morse 4 | Jacobs 6 | 5 63/64" | Hardened Steel | 9255N36 | 00000 | ||
| Morse 4 | Jacobs 33 | 5 63/64" | Hardened Steel | 9255N35 | 00000 | ||
| Morse 5 | Jacobs 3 | 7 31/64" | Hardened Steel | 9255N41 | 00000 | ||
| Morse 5 | Jacobs 4 | 7 29/32" | Hardened Steel | 9255N42 | 00000 | ||
| Morse 5 | Jacobs 6 | 7 19/32" | Hardened Steel | 9255N12 | 00000 | ||
| Morse 5 | Jacobs 33 | 7 13/32" | Hardened Steel | 9255N11 | 00000 | ||
Straight-Shank to Jacobs Taper Drill Chuck Arbors
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Shank Dia. | For Drill Chuck Taper No. | Overall Lg. | Material | Each | |||
|---|---|---|---|---|---|---|---|
Made in the U.S. | |||||||
| 1/2" | Jacobs 0 | 3 7/64" | Hardened Steel | 2811A53 | 000000 | ||
| 1/2" | Jacobs 1 | 3 11/32" | Hardened Steel | 2811A54 | 00000 | ||
| 1/2" | Jacobs 2, Jacobs 2s | 3 35/64" | Hardened Steel | 2811A55 | 00000 | ||
| 1/2" | Jacobs 3 | 3 63/64" | Hardened Steel | 2811A56 | 00000 | ||
| 1/2" | Jacobs 6 | 3 3/4" | Hardened Steel | 2811A58 | 00000 | ||
| 1/2" | Jacobs 33 | 3 3/4" | Hardened Steel | 2811A59 | 00000 | ||
| 5/8" | Jacobs 1 | 3 11/32" | Hardened Steel | 2811A66 | 00000 | ||
| 5/8" | Jacobs 2, Jacobs 2s | 3 19/32" | Hardened Steel | 2811A62 | 00000 | ||
| 5/8" | Jacobs 3 | 3 63/64" | Hardened Steel | 2811A63 | 00000 | ||
| 5/8" | Jacobs 6 | 3 3/4" | Hardened Steel | 2811A64 | 00000 | ||
| 5/8" | Jacobs 33 | 3 3/4" | Hardened Steel | 2811A65 | 00000 | ||
| 3/4" | Jacobs 2, Jacobs 2s | 4 7/64" | Hardened Steel | 2811A68 | 00000 | ||
| 3/4" | Jacobs 3 | 4 1/2" | Hardened Steel | 2811A69 | 00000 | ||
| 3/4" | Jacobs 6 | 4 17/64" | Hardened Steel | 2811A71 | 00000 | ||
| 3/4" | Jacobs 33 | 4 17/64" | Hardened Steel | 2811A72 | 00000 | ||
Made Outside the U.S. | |||||||
| 1/2" | Jacobs 0 | 3 3/32" | Hardened Steel | 9259N15 | 00000 | ||
| 1/2" | Jacobs 1 | 3 5/16" | Hardened Steel | 9259N16 | 00000 | ||
| 1/2" | Jacobs 2, Jacobs 2s | 3 35/64" | Hardened Steel | 9259N17 | 00000 | ||
| 1/2" | Jacobs 3 | 3 21/32" | Hardened Steel | 9259N21 | 00000 | ||
| 1/2" | Jacobs 4 | 4 5/16" | Hardened Steel | 9259N22 | 00000 | ||
| 1/2" | Jacobs 6 | 3 21/32" | Hardened Steel | 9259N19 | 00000 | ||
| 1/2" | Jacobs 33 | 3 21/32" | Hardened Steel | 9259N18 | 00000 | ||
| 5/8" | Jacobs 1 | 3 5/16" | Hardened Steel | 9259N23 | 00000 | ||
| 5/8" | Jacobs 2, Jacobs 2s | 3 35/64" | Hardened Steel | 9259N24 | 00000 | ||
| 5/8" | Jacobs 3 | 3 7/8" | Hardened Steel | 9259N27 | 00000 | ||
| 5/8" | Jacobs 4 | 4 21/64" | Hardened Steel | 9259N11 | 00000 | ||
| 5/8" | Jacobs 6 | 3 21/32" | Hardened Steel | 9259N26 | 00000 | ||
| 5/8" | Jacobs 33 | 3 21/32" | Hardened Steel | 9259N25 | 00000 | ||
| 3/4" | Jacobs 2, Jacobs 2s | 3 35/64" | Hardened Steel | 9259N28 | 00000 | ||
| 3/4" | Jacobs 3 | 3 7/8" | Hardened Steel | 9259N32 | 00000 | ||
| 3/4" | Jacobs 4 | 4 5/16" | Hardened Steel | 9259N33 | 00000 | ||
| 3/4" | Jacobs 6 | 3 21/32" | Hardened Steel | 9259N31 | 00000 | ||
| 3/4" | Jacobs 33 | 3 21/32" | Hardened Steel | 9259N29 | 00000 | ||
| 1" | Jacobs 2, Jacobs 2s | 4 3/32" | Hardened Steel | 9259N12 | 00000 | ||
| 1" | Jacobs 3 | 3 7/8" | Hardened Steel | 9259N36 | 00000 | ||
| 1" | Jacobs 4 | 4 5/16" | Hardened Steel | 9259N37 | 00000 | ||
| 1" | Jacobs 6 | 3 21/32" | Hardened Steel | 9259N35 | 00000 | ||
| 1" | Jacobs 33 | 3 21/32" | Hardened Steel | 9259N34 | 00000 | ||
| 1 1/2" | Jacobs 3 | 4 61/64" | Hardened Steel | 9259N13 | 00000 | ||
| 1 1/2" | Jacobs 4 | 5 7/16" | Hardened Steel | 9259N14 | 00000 | ||
Morse Taper to Jacobs Taper Arbor and Drill Chuck Sets
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Everything you need to adapt your machine’s Morse taper spindle to hold round- and hex-shank drill bits. The drill chuck and arbor in these sets are separate pieces, so you can swap out a worn chuck or replace it with a keyless one without replacing the arbor. Compared to drill chucks with an integrated arbor, these sets give you more versatility but are longer, less rigid, and less accurate.
Arbor | Drill Chuck | Chuck Key | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
For Machine Spindle Taper No. | For Drill Chuck Taper No. | Lg. | For Bit Shank Size (Inch) | For Bit Shank Size (Metric), mm | Material | Jaw Material | No. | Included | Each | ||
| Morse 3 | Jacobs 3 | 5 1/2" | 3/16" to 3/4" | 4.5 to 19 | Steel | Steel | K3 | Yes | 2805A61 | 0000000 | |
R8 Taper to Jacobs Taper Drill Chuck Arbors
 |
Adapt machines with R8 taper spindles to mount Jacobs taper drill chucks. These arbors are made of hardened steel and are precision ground for accuracy. They thread onto your machine’s drawbar for a secure connection. Strike the top of the arbor to seat them onto a drill chuck. To separate them, use a drill chuck removal tool.
Economy—Economy arbors are great for occasional or low-volume jobs.
Industrial—Industrial arbors are harder and more wear resistant than Economy arbors.
For Drill Chuck Taper No. | Overall Lg. | Material | Hardness | Each | |||
|---|---|---|---|---|---|---|---|
Economy | |||||||
| Jacobs 1 | 4 13/16" | Hardened Steel | Rockwell C28 (Hard) | 8775A16 | 000000 | ||
| Jacobs 2, Jacobs 2s | 5 3/64" | Hardened Steel | Rockwell C28 (Hard) | 8775A17 | 00000 | ||
| Jacobs 3 | 5 25/64" | Hardened Steel | Rockwell C28 (Hard) | 8775A21 | 00000 | ||
| Jacobs 4 | 5 27/32" | Hardened Steel | Rockwell C28 (Hard) | 8775A22 | 00000 | ||
| Jacobs 6 | 5 25/64" | Hardened Steel | Rockwell C28 (Hard) | 8775A19 | 00000 | ||
| Jacobs 33 | 5 13/64" | Hardened Steel | Rockwell C28 (Hard) | 8775A18 | 00000 | ||
Industrial | |||||||
| Jacobs 1 | 4 53/64" | Hardened Steel | Rockwell C55 (Extra Hard) | 8775A11 | 00000 | ||
| Jacobs 2, Jacobs 2s | 5 5/64" | Hardened Steel | Rockwell C55 (Extra Hard) | 8775A12 | 00000 | ||
| Jacobs 3 | 5 27/64" | Hardened Steel | Rockwell C55 (Extra Hard) | 8775A13 | 00000 | ||
| Jacobs 6 | 5 15/64" | Hardened Steel | Rockwell C55 (Extra Hard) | 8775A14 | 00000 | ||
| Jacobs 33 | 5 15/64" | Hardened Steel | Rockwell C55 (Extra Hard) | 8775A15 | 00000 | ||
Drill Chuck Arbors with Drill-Feed Attachment
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Drill Chuck Not Included |
Take control when drilling small holes with a drill press, milling machine, or lathe. These arbors have an attachment that lets you gently feed the bit forward by hand while the machine rotates it. When you let go, your chuck retracts automatically.
Straight
 |
Industrial—Industrial arbors are compatible with any JT0 taper drill chuck.
Premium—Premium arbors are crafted by Albrecht, a brand known for its unmatched quality. Made in Germany, every arbor undergoes multiple inspections and tests to ensure that they operate smoothly over their long life. They have a high-precision spring to reduce vibration and extend tool life for continuous use. These arbors are designed for Albrecht 15-J0 drill chucks but will still fit JT0 drill chucks, though performance may be reduced.
Morse Taper
 |
Premium—Premium arbors are crafted by Albrecht, a brand known for its unmatched quality. Made in Germany, every arbor undergoes multiple inspections and tests to ensure that they operate smoothly over their long life. They have a high-precision spring to reduce vibration and extend tool life for continuous use. These arbors are designed for Albrecht 15-J0 drill chucks but will still fit JT0 drill chucks, though performance may be reduced.
For Machine Spindle Taper No. | Spindle Travel | For Drill Chuck Taper No. | Max. No-Load Rotational Speed, rpm | Total Indicated Runout (TIR) Accuracy | Overall Lg. | Material | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|
Premium—Albrecht | ||||||||||
| Morse 1 | 7/8" | Jacobs 0 | 10,000 | 0.001" | 4" | Steel | 3100A11 | 0000000 | ||
Quick-Change Milling Machine Tool Holders
NMTB Taper to Jacobs Taper Drill Chuck Arbors
 |  |
Adapt machines with NMTB taper spindles to mount Jacobs taper drill chucks. These arbors are made of hardened steel to resist wear. Their shank is precision ground to the industry standard AT3 tolerance for a secure fit that minimizes runout in your machine spindle. Internal threads in the shank connect to your machine's drawbar. These arbors meet ASME standards for compatibility across machines with NMTB spindles. They're also compatible with older Erickson quick-change spindles.
Strike the top of the arbor to seat them onto a drill chuck. To separate them, use a drill chuck removal tool.
Machine Taper No. | For Drill Chuck Taper No. | Overall Lg. | Projection | Material | Specs. Met | Each | |||
|---|---|---|---|---|---|---|---|---|---|
| NMTB 30 | Jacobs 3 | 5 13/32" | 1 1/2" | Hardened Steel | ASME B5.18 | 9257N11 | 000000 | ||
| NMTB 30 | Jacobs 6 | 5 5/32" | 1 1/2" | Hardened Steel | ASME B5.18 | 9257N13 | 00000 | ||
| NMTB 30 | Jacobs 33 | 5 5/32" | 1 1/2" | Hardened Steel | ASME B5.18 | 9257N12 | 00000 | ||
| NMTB 40 | Jacobs 2, Jacobs 2s | 6 1/16" | 1 1/2" | Hardened Steel | ASME B5.18 | 9257N14 | 00000 | ||
| NMTB 40 | Jacobs 3 | 6 3/8" | 1 1/2" | Hardened Steel | ASME B5.18 | 9257N15 | 00000 | ||
| NMTB 40 | Jacobs 6 | 6 5/32" | 1 1/2" | Hardened Steel | ASME B5.18 | 9257N16 | 00000 | ||
| NMTB 40 | Jacobs 33 | 6 3/16" | 1 1/2" | Hardened Steel | ASME B5.18 | 9257N17 | 00000 | ||
| NMTB 50 | Jacobs 3 | 8 3/16" | 2" | Hardened Steel | ASME B5.18 | 9257N18 | 000000 | ||
| NMTB 50 | Jacobs 4 | 8 5/8" | 2" | Hardened Steel | ASME B5.18 | 9257N19 | 000000 | ||
| NMTB 50 | Jacobs 5 | 8 27/32" | 2" | Hardened Steel | ASME B5.18 | 9257N21 | 000000 | ||
CAT Taper to Jacobs Taper Drill Chuck Arbors
 |  |
Adapt machines with CAT taper spindles to hold Jacobs taper drill chucks. These arbors are made of hardened steel to resist wear. Their shank is precision ground to the industry standard AT3 tolerance for a secure fit that minimizes runout in your machine spindle. They meet ASME standards for CAT spindles to ensure compatibility. The shank has internal threads for a retention knob, so you can connect them to your machine’s drawbar system.
Strike the top of the shank to seat these arbors onto a drill chuck. To separate them, use a drill chuck removal tool.
Machine Taper No. | For Drill Chuck Taper No. | Overall Lg. | Projection | Material | Specs. Met | Each | |||
|---|---|---|---|---|---|---|---|---|---|
| CAT 40 | Jacobs 2, Jacobs 2s | 5 1/16" | 1 1/2" | Hardened Steel | ASME B5.50 | 9251N11 | 000000 | ||
| CAT 40 | Jacobs 3 | 5 13/32" | 1 1/2" | Hardened Steel | ASME B5.50 | 9251N14 | 00000 | ||
| CAT 40 | Jacobs 4 | 5 27/32" | 1 1/2" | Hardened Steel | ASME B5.50 | 9251N15 | 00000 | ||
| CAT 40 | Jacobs 5 | 6 1/16" | 1 1/2" | Hardened Steel | ASME B5.50 | 9251N16 | 000000 | ||
| CAT 40 | Jacobs 6 | 5 3/16" | 1 1/2" | Hardened Steel | ASME B5.50 | 9251N13 | 00000 | ||
| CAT 40 | Jacobs 33 | 5 3/16" | 1 1/2" | Hardened Steel | ASME B5.50 | 9251N12 | 00000 | ||
| CAT 50 | Jacobs 2, Jacobs 2s | 6 3/8" | 1 1/2" | Hardened Steel | ASME B5.50 | 9251N17 | 000000 | ||
| CAT 50 | Jacobs 3 | 6 23/32" | 1 1/2" | Hardened Steel | ASME B5.50 | 9251N21 | 000000 | ||
| CAT 50 | Jacobs 4 | 7 5/32" | 1 1/2" | Hardened Steel | ASME B5.50 | 9251N22 | 000000 | ||
| CAT 50 | Jacobs 5 | 7 3/8" | 1 1/2" | Hardened Steel | ASME B5.50 | 9251N23 | 000000 | ||
| CAT 50 | Jacobs 6 | 6 1/2" | 1 1/2" | Hardened Steel | ASME B5.50 | 9251N19 | 000000 | ||
| CAT 50 | Jacobs 33 | 6 1/2" | 1 1/2" | Hardened Steel | ASME B5.50 | 9251N18 | 000000 | ||
BT Taper to Jacobs Taper Drill Chuck Arbors
 | |
Adapt machines with BT taper spindles to hold Jacobs taper drill chucks. These arbors are made of hardened steel to resist wear. Their shank is precision ground to the industry standard AT3 tolerance for a secure fit that minimizes runout in your machine spindle. They meet JIS standards for BT spindles to ensure compatibility. The shank has internal threads for a retention knob, so you can connect them to your machine’s drawbar system.
Strike the top of the shank to seat these arbors onto a drill chuck. To separate them, use a drill chuck removal tool.
Machine Taper No. | For Drill Chuck Taper No. | Overall Lg. | Projection | Material | JIS Specification | Each | |||
|---|---|---|---|---|---|---|---|---|---|
| BT 30 | Jacobs 2, Jacobs 2s | 3 7/8" | 1 3/16" | Hardened Steel | JIS B 6339 | 9249N11 | 0000000 | ||
| BT 40 | Jacobs 2, Jacobs 2s | 5 3/8" | 1 49/64" | Hardened Steel | JIS B 6339 | 9249N12 | 00000 | ||
| BT 40 | Jacobs 6 | 5 11/32" | 1 49/64" | Hardened Steel | JIS B 6339 | 9249N14 | 00000 | ||
| BT 40 | Jacobs 33 | 5 11/32" | 1 49/64" | Hardened Steel | JIS B 6339 | 9249N13 | 00000 | ||
| BT 50 | Jacobs 2, Jacobs 2s | 6 21/32" | 1 49/64" | Hardened Steel | JIS B 6339 | 9249N15 | 000000 | ||
| BT 50 | Jacobs 33 | 6 49/64" | 1 49/64" | Hardened Steel | JIS B 6339 | 9249N16 | 000000 | ||
