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OBSOLETE-Standard retention knob; CAT30, 1/2"-13; 45°; Coolant through

Category: Retention Knobs
Thread Size: .500-13
Angle: 45
Knob Diameter: 0.520
L1 Length: 0.3200
L2 Length: 0.460
Flange Thickness: 0.100
Hole Diameter: 0.187
Neck Diameter: 0.385
Pilot Diameter: -
Shoulder Diameter: 0.645
Wrench Flat Diameter: .525.
Socket Part #: RKW30
Number: JM11111
Country of Origin: USA

This knob is a replacement for the following parts:

ManufacturerPart Number
Retention Knob Supply: RK111-11
Sandvik: 390.45-1/2 UNC-01
Seco: 1603
Command: RC2E-0001-C
Davies: PSC-575
Kennametal: RK30CV
Older Kennametal: 1026696
Lyndex: C30-STD*
MSC: 1401629
For Machines (see disclaimer)*: Neway

* 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