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High Torque© retention knob; CAT50, 1"-8; 45°, Solid

Retention Knob Information and Installation (PDF)

Retention Knob Installation Video

Category: Retention Knobs
Thread Size: 1.00-8
Angle: 45
Knob Diameter: 0.938
L1 Length: 1.9700
L2 Length: 2.498
Flange Thickness: 1.273
Hole Diameter: -
Neck Diameter: 0.628
Pilot Diameter: 1.031
Shoulder Diameter: 1.492
Wrench Flat Diameter: 1.176
Socket Part #: RKW50M
Number: JM25094HT
Country of Origin: USA

This knob is a replacement for the following parts:

ManufacturerPart Number

* Retention knobs are not interchangeable. Machines are only given as a reference, JMPP makes no guarantee this is the correct knob for your machine. Please call us at 1-800-322-7750 or email for knob identification help.

WARNING: The steel alloy used in this product contains chromium and nickel. This product can expose you to chemicals including chromium and nickel, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to