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 |
Collet Chucks
Securely hold collets in the spindle of a milling machine.
Use a nut wrench (sold separately) to tighten the chuck nut and secure the tool bit in the collet.
For technical drawings and 3-D models, click on a part number.
Collet Chucks | Nut Wrenches | Replacement Nuts | ||||||
|---|---|---|---|---|---|---|---|---|
| For Collet Type | Projection | Material | Each | Each | Each | |||
CAT 40 Taper | ||||||||
| 100-TG | 2 3/4" | Steel | 00000000 | 0000000 | 00000000 | 000000 | 00000000 | 000000 |
| 100-TG | 3 1/2" | Steel | 00000000 | 000000 | 00000000 | 00000 | 00000000 | 00000 |
| ER-11 | 2 1/2" | Steel | 00000000 | 000000 | 00000000 | 00000 | 00000000 | 00000 |
| ER-11 | 6" | Steel | 00000000 | 000000 | 00000000 | 00000 | 00000000 | 00000 |
| ER-16 | 2 1/4" | Steel | 00000000 | 000000 | 00000000 | 00000 | 00000000 | 00000 |
| ER-16 | 3 1/2" | Steel | 00000000 | 000000 | 00000000 | 00000 | 00000000 | 00000 |
| ER-20 | 2 1/2" | Steel | 0000000 | 000000 | 0000000 | 00000 | 00000000 | 00000 |
| ER-25 | 2 1/2" | Steel | 00000000 | 000000 | 00000000 | 00000 | 00000000 | 00000 |
| ER-25 | 6" | Steel | 00000000 | 000000 | 00000000 | 00000 | 00000000 | 00000 |
| ER-32 | 3/4" | Steel | 00000000 | 000000 | 000000 | 00 | 00000000 | 00000 |
| ER-32 | 3 1/8" | Steel | 0000000 | 000000 | 0000000 | 00000 | 00000000 | 00000 |
| ER-32 | 5" | Steel | 00000000 | 000000 | 0000000 | 00000 | 00000000 | 00000 |
| ER-32 | 9" | Steel | 00000000 | 000000 | 0000000 | 00000 | 00000000 | 00000 |
Retention Knobs
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 |