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CAT 40 Taper End Mill Holders
Securely grip end mills in machines with a CAT 40 taper spindle. Holders have threads on the tapered end to hold retention knobs that fit your machine.
For technical drawings and 3-D models, click on a part number.
Shank | Head | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| For End Mill Shank Dia. | For Number of End Mill Milling Ends | Thread Size  | Thread Gender | Dia. | Lg. | Material | Fabrication | Includes | Each | |
| 1/8" | 1, 2 | 5/8"-11 | Female | 3/4" | 2 3/8" | Steel | Heat Treated | Set Screws | 000000000 | 0000000 |
| 3/16" | 1, 2 | 5/8"-11 | Female | 3/4" | 2 1/2" | Steel | Heat Treated | Set Screws | 000000000 | 000000 |
| 1/4" | 1, 2 | 5/8"-11 | Female | 51/64" | 2 1/2" | Steel | Heat Treated | Set Screws | 000000000 | 000000 |
| 3/8" | 1, 2 | 5/8"-11 | Female | 1" | 2 1/2" | Steel | Heat Treated | Set Screws | 000000000 | 000000 |
| 1/2" | 1, 2 | 5/8"-11 | Female | 1 3/8" | 2 1/2" | Steel | Heat Treated | Set Screws | 000000000 | 000000 |
| 1/2" | 1, 2 | 5/8"-11 | Female | 1 3/8" | 4" | Steel | Heat Treated | Set Screws | 000000000 | 000000 |
| 5/8" | 1, 2 | 5/8"-11 | Female | 1 21/32" | 3" | Steel | Heat Treated | Set Screws | 000000000 | 000000 |
| 3/4" | 1, 2 | 5/8"-11 | Female | 1 3/4" | 3" | Steel | Heat Treated | Set Screws | 000000000 | 000000 |
| 1" | 1, 2 | 5/8"-11 | Female | 2 3/8" | 4" | Steel | Heat Treated | Set Screws | 000000000 | 000000 |
| 1 1/4" | 1, 2 | 5/8"-11 | Female | 2 1/2" | 4" | Steel | Heat Treated | Set Screws | 000000000 | 000000 |
Retention Knobs
Knob with Coolant Hole
Knob
Knob with Coolant Hole
Knob
Attach tool holders such as collet chucks and end mill holders to your CNC machine’s spindle. For proper operation, choose a knob that exactly matches your collet type and spindle dimensions. All meet industrial standards for tensile and shear strength. These knobs are also known as pull studs.
Knobs with a coolant hole let coolant flow through to protect your tools and workpiece.
For technical drawings and 3-D models, click on a part number.
| Grip Angle | Projection | Head Dia. | Collar Dia. | Head-to-Flange Lg. | Flange Thick. | ID | Torque Range | Material | Features | Manufacturer | Manufacturer Model No. | Specifications Met | Each | |
CAT 40 Taper | ||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
5/8"-11 | ||||||||||||||
| 15° | 1.03" | 0.748" | 0.512" | 0.793" | 0.28" | 0.276" | 44 ft.-lbs. to 59 ft.-lbs. | Steel | Coolant Hole | Lyndex Nikken | C40-1500 | ISO 7388-3, JIS B 6339 | 0000000 | 000000 |
| 15° | 1.03" | 0.748" | 0.641" | 0.793" | 0.28" | 0.276" | 44 ft.-lbs. to 59 ft.-lbs. | Steel | O-Ring, Coolant Hole | Lyndex Nikken | C40-1500(R) | ISO 7388-3, JIS B 6339 | 0000000 | 00000 |
| 15° | 1.03" | 0.748" | 0.641" | 0.793" | 0.28" | 0.276" | 44 ft.-lbs. to 59 ft.-lbs. | Steel | O-Ring, Coolant Hole | Lyndex Nikken | C40-1500-MORI | ISO 7388-3, JIS B 6339 | 0000000 | 00000 |
| 30° | 1.266" | 0.591" | 0.512" | 0.99" | 0.24" | __ | 44 ft.-lbs. to 59 ft.-lbs. | Steel | __ | Lyndex Nikken | C40S-6000 | ISO 7388-3, JIS B 6339 | 0000000 | 00000 |
| 45° | 0.64" | 0.74" | 0.512" | 0.433" | 0.12" | 0.276" | 44 ft.-lbs. to 59 ft.-lbs. | Steel | Coolant Hole | Lyndex Nikken | C40-STD | ISO 7388-3, JIS B 6339 | 0000000 | 00000 |
| 45° | 0.64" | 0.74" | 0.641" | 0.44" | 0.12" | 0.157" | Not Rated | Steel | O-Ring, Coolant Hole | Lyndex Nikken | PS-B64-1 | ISO 7388-3, JIS B 6339 | 0000000 | 00000 |
| 45° | 1.266" | 0.591" | 0.512" | 0.99" | 0.24" | __ | 44 ft.-lbs. to 59 ft.-lbs. | Steel | __ | Lyndex Nikken | C40S-4500 | ISO 7388-3, JIS B 6339 | 0000000 | 00000 |
| 45° | 1.266" | 0.591" | 0.512" | 0.99" | 0.24" | 0.177" | 44 ft.-lbs. to 59 ft.-lbs. | Steel | Coolant Hole | Lyndex Nikken | C40S-4500(H) | ISO 7388-3, JIS B 6339 | 0000000 | 00000 |