Filter by
System of Measurement
Manufacturer Model Number
Shank Type
Maximum Torque
Specifications Met
Export Control Classification Number (ECCN)
REACH
DFARS Specialty Metals
RoHS
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 |