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Retention Knobs

Knob

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.
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. | Torque Range | Material | Manufacturer | Manufacturer Model No. | Specifications Met | Each | |
BT 40 Taper | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
M16 × 2 mm | ||||||||||||
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 | 000000 |