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Collet Chucks
R8 Taper
CAT 40 Taper
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 | |||
R8 Taper | ||||||||
| ER-16 | 1" | Steel | 0000000 | 0000000 | 00000000 | 000000 | 00000000 | 000000 |
| ER-20 | 2" | Steel | 0000000 | 000000 | 0000000 | 00000 | 00000000 | 00000 |
CAT 40 Taper | ||||||||
| 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 |
ER-20 Collet Stands
Overall | Mounting Slot | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| For Number of Collets | Ht. | Wd. | Dp. | No. of | Wd. | Lg. | Material | Each | |
| 36 | 1 3/8" | 9 1/8" | 7 7/32" | 2 | 1/4" | 1 1/16" | Steel | 0000000 | 000000 |
ER-16 Collet Stands
Overall | Mounting Slot | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| For Number of Collets | Ht. | Wd. | Dp. | No. of | Wd. | Lg. | Material | Each | |
| 49 | 1 3/8" | 9 1/8" | 7 7/32" | 2 | 1/4" | 1 1/16" | Steel | 0000000 | 000000 |
ER-32 Collet Stands
Overall | Mounting Slot | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| For Number of Collets | Ht. | Wd. | Dp. | No. of | Wd. | Lg. | Material | Each | |
| 40 | 2" | 9 1/8" | 17" | 2 | 1/4" | 1 1/16" | Steel | 0000000 | 000000 |
Quick-Change Tool Holders for Milling Machines
After installing the R8 body in the milling machine spindle, tool holders can be switched out in seconds. To remove a tool holder, depress the brass locking button and rotate the collar on the R8 body. When a new tool holder is inserted, a spring-loaded pin snaps the collar back into the locked position.
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 |
CAT 50 Taper | ||||||||||||||
1"-8 | ||||||||||||||
| 30° | 1.772" | 0.906" | 1.024" | 1.378" | 0.39" | 0.236" | 85 ft.-lbs. to 110 ft.-lbs. | Steel | O-Ring, Coolant Hole | Lyndex Nikken | PS-B61 | ISO 7388-3, JIS B 6339 | 0000000 | 00000 |
| 45° | 1" | 1.142" | 0.768" | 0.701" | 0.2" | 0.461" | 85 ft.-lbs. to 110 ft.-lbs. | Steel | Coolant Hole | Lyndex Nikken | C50-STD | ISO 7388-3, JIS B 6339 | 0000000 | 00000 |
| 45° | 1.78" | 0.906" | 0.827" | 1.386" | 0.39" | 0.236" | 85 ft.-lbs. to 110 ft.-lbs. | Steel | Coolant Hole | Lyndex Nikken | C50-4500(H) | ISO 7388-3, JIS B 6339 | 0000000 | 00000 |
BT 30 Taper | ||||||||||||||
M12 × 1.75 mm | ||||||||||||||
| 30° | 0.906" | 0.433" | 0.492" | 0.709" | 0.2" | __ | 16 ft.-lbs. to 18 ft.-lbs. | Steel | __ | Lyndex Nikken | B30-6000 | JIS B 6339 | 0000000 | 00000 |
| 45° | 0.906" | 0.433" | 0.492" | 0.709" | 0.2" | __ | 16 ft.-lbs. to 18 ft.-lbs. | Steel | __ | Lyndex Nikken | B30-4500 | JIS B 6339 | 0000000 | 00000 |
BT 40 Taper | ||||||||||||||
M16 × 2 mm | ||||||||||||||
| 15° | 1.142" | 0.748" | 0.669" | 0.906" | 0.28" | 0.276" | 44 ft.-lbs. to 59 ft.-lbs. | Steel | O-Ring, Coolant Hole | Lyndex Nikken | B40-1500(R) | JIS B 6339 | 0000000 | 00000 |
| 15° | 1.142" | 0.748" | 0.669" | 0.906" | 0.28" | 0.276" | 44 ft.-lbs. to 59 ft.-lbs. | Steel | Coolant Hole | Lyndex Nikken | B40-1500 | JIS B 6339 | 0000000 | 00000 |
| 15° | 1.142" | 0.748" | 0.669" | 0.906" | 0.34" | 0.276" | 44 ft.-lbs. to 59 ft.-lbs. | Steel | O-Ring, Coolant Hole | Lyndex Nikken | B40-1500-MORI | JIS B 6339 | 0000000 | 00000 |
| 45° | 0.752" | 0.74" | 0.669" | 0.552" | 0.24" | __ | 44 ft.-lbs. to 59 ft.-lbs. | Steel | __ | Lyndex Nikken | B40-FADAL | JIS B 6339 | 0000000 | 00000 |
| 45° | 1.378" | 0.591" | 0.669" | 1.102" | 0.24" | __ | 44 ft.-lbs. to 59 ft.-lbs. | Steel | __ | Lyndex Nikken | B40-4500 | JIS B 6339 | 0000000 | 00000 |
| 45° | 1.378" | 0.591" | 0.669" | 1.102" | 0.24" | 0.181" | 44 ft.-lbs. to 59 ft.-lbs. | Steel | Coolant Hole | Lyndex Nikken | B40-4500(H) | JIS B 6339 | 0000000 | 00000 |
BT 50 Taper | ||||||||||||||
M24 × 3 mm | ||||||||||||||
| 45° | 1.772" | 0.906" | 0.984" | 1.378" | 0.39" | __ | 85 ft.-lbs. to 110 ft.-lbs. | Steel | __ | Lyndex Nikken | B50-4500 | JIS B 6339 | 0000000 | 00000 |
| 45° | 1.772" | 0.906" | 0.984" | 1.378" | 0.39" | 0.276" | 85 ft.-lbs. to 110 ft.-lbs. | Steel | Coolant Hole | Lyndex Nikken | B50-4500(H) | JIS B 6339 | 0000000 | 00000 |