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Grip Angle
Machine Taper Number
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Head-to-Flange Length
DFARS Specialty Metals
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Retention Knobs
Knob with Coolant Hole
Knob with Coolant Hole
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" | 0.641" | 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 | 000000 |