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OBSOLETE-Standard retention knob, BT40, M16x2, 15°; Coolant through-See JM32913HS, JM32913HT, JM32913HTHS

Category: Retention Knobs
Thread Size: M16X2.0
Angle: 15
Knob Diameter: 0.746
L1 Length: 0.9035
L2 Length: 1.140
Flange Thickness: 0.274
Hole Diameter: 0.281
Neck Diameter: 0.549
Pilot Diameter: 0.669
Shoulder Diameter: 0.903
Wrench Flat Diameter: 0.746
Socket Part #: RKW40
Number: JM32913
Solid Version: JM32912HS, JM32912HT, JM32912HTHS
Alternate Part: JM32913HS, JM32913HT, JM32913HTHS
Country of Origin: USA

This knob is a replacement for the following parts:

ManufacturerPart Number
Retention Knob Supply: RK329-13
Seco: 1626
Kenn 2: 2878495
HPI: HPS-805-1
Big Kaiser: 40PH
Command: RS4M-0205-C
Davies: PSC-444X15
Lyndex: B40-1500H*
Parlec: MAK40TRKC
For Machines (see disclaimer)*: Doosan, Kitamura, Kiwa, Matsuura, Okuma

* 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