Photo comingSpecifications below are JM Performance’s.

JM32130HT

Name: CAT40 High Torque retention knob, 45°, 5/8-11, coolant-through, O-rings
Brand: JM Performance
SKU: JM32130HT
Price: 83.54 USD
Availability: BackOrder

CAT40 High Torque retention knob, 45°, 5/8-11, coolant-through, O-rings

CAT4045°5/8-11Coolant-through

SpecificationsFrom JM Performance's product pages

Taper: CAT40
Style: —
Angle: 45°
Thread: 5/8-11
Flange to end of knob: 1.264"
Knob Ø: .588"
Neck Ø: .392"
Coolant: Coolant-through; with O-ring
Socket: RKW40

Machines

Machines this knob is listed for

CAT40, 45°.

Find the knob for another machine

Verify firstListed as a guide only. Builders change knob specs between models, years and coolant options, so check your machine’s manual, or send us the make, model and serial number and we’ll confirm before you order. The wrong retention knob can let a holder pull out of the spindle.

Builder	Machines	Taper
DMG MORI (formerly Hitachi Seiki)	VK, VM-40/50, VS-40/50/60, VKC, VA, HG-400, HS, HK-630, HA series; Hitachi Seiki VA-35/40, HC-400, VK-45, VM-40, Minimatic	BT40 / CAT40
Fryer	Fryer VMCs / bed mills (CAT40, BT40, CAT50)	CAT40 / BT40 / CAT50
Haas	All CT40 mills (VF series, Mini Mill, UMC, EC-400 etc.)Builder p/n 04-0292 (solid), 04-0293 (TSC), 04-0201 (TSC 10-pack)	CAT40
Hwacheon	VESTA-660, VESTA-650T, VESTA-610D, VESTA-1000+, SIRIUS-UL+ (12K/14K/20K) and other BT40 models	BT40 / CAT40
Hyundai WIA	KF series with CAT40/BCV40 option	CAT40
Johnford	VMC-1050 and other Johnford VMCs	BT40 / CAT40 / CAT50
Kitamura	Older Mycenter 3, 4, 5, 6, H300, H300B, H500, H600, H800, Jig Center 7/8	CAT40 / BT40 / CAT50
Leadwell	MCV-0, MCV-OP, MCV-550E/S/D, MCV-610S, MCV-760XL, V-350, V-410, MCH-350/500	BT40 / CAT40
Okuma	Okuma-Howa / MILLAC series (Millac 3-VA, 4-VA, 4-H; MILLAC V/H; MM-300, ML-300)	BT40 / CAT40
YCI / Yama Seiki (YCM)	YCM VMC-60A/72A, MAX3 and other YCI machines	BT40 / CAT40 / CAT50

JM Performance’s own machine guide lists this knob for Hyundai-Kia (CAT40). JM gives its machines as a reference only, not a guarantee.

Don’t see your machine? Call the counter at 408-834-8656 with the make, model and serial number and we’ll find the right knob.

JM Performance’s dimensions

Knob Ø: .588"
Neck Ø: .392"
Flange to start of angle (L1): .988"
Flange to end of knob (L2): 1.264"
Flange thickness: .124"
Flange (shoulder) Ø: .903"
Pilot Ø: .641"
Wrench flats: .743"
Coolant hole Ø: .116"
Knob Side O-ring: ORM0190-00480NBR-70
Thread Side O-ring: S-15
Thread: 5/8-11
Tightening socket: RKW40

From JM Performance’s product page.

Builder

Machines

Taper

DMG MORI (formerly Hitachi Seiki)

VK, VM-40/50, VS-40/50/60, VKC, VA, HG-400, HS, HK-630, HA series; Hitachi Seiki VA-35/40, HC-400, VK-45, VM-40, Minimatic

BT40 / CAT40

Fryer

Fryer VMCs / bed mills (CAT40, BT40, CAT50)

CAT40 / BT40 / CAT50

Haas

All CT40 mills (VF series, Mini Mill, UMC, EC-400 etc.)Builder p/n 04-0292 (solid), 04-0293 (TSC), 04-0201 (TSC 10-pack)

CAT40

Hwacheon

VESTA-660, VESTA-650T, VESTA-610D, VESTA-1000+, SIRIUS-UL+ (12K/14K/20K) and other BT40 models

BT40 / CAT40

Hyundai WIA

KF series with CAT40/BCV40 option

CAT40

Johnford

VMC-1050 and other Johnford VMCs

BT40 / CAT40 / CAT50

Kitamura

Older Mycenter 3, 4, 5, 6, H300, H300B, H500, H600, H800, Jig Center 7/8

CAT40 / BT40 / CAT50

Leadwell

MCV-0, MCV-OP, MCV-550E/S/D, MCV-610S, MCV-760XL, V-350, V-410, MCH-350/500

BT40 / CAT40

Okuma

Okuma-Howa / MILLAC series (Millac 3-VA, 4-VA, 4-H; MILLAC V/H; MM-300, ML-300)

BT40 / CAT40

YCI / Yama Seiki (YCM)

YCM VMC-60A/72A, MAX3 and other YCI machines

BT40 / CAT40 / CAT50

JM Performance’s dimensions

Knob Ø

.588"

Neck Ø

.392"

Flange to start of angle (L1)

.988"

Flange to end of knob (L2)

1.264"

Flange thickness

.124"

Flange (shoulder) Ø

.903"

Pilot Ø

.641"

Wrench flats

.743"

Coolant hole Ø

.116"

Knob Side O-ring

ORM0190-00480NBR-70

Thread Side O-ring

S-15

Thread

5/8-11

Tightening socket

RKW40