Shank Type Shank Type |
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Manufacturer Model Number Manufacturer Model Number |
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Head-to-Flange Length Head-to-Flange Length |
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Maximum Torque Maximum Torque |
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Minimum Torque Minimum Torque |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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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 |