Photo comingSpecifications below are JM Performance’s.
JM31109CHTHS
BT30 High Torque retention knob, 45°, M12, coolant-through, 9310HBT3045°M12Coolant-through
SpecificationsFrom JM Performance's product pages
- Taper
- BT30
- Style
- —
- Angle
- 45°
- Thread
- M12
- Flange to end of knob
- .904"
- Knob Ø
- .431"
- Neck Ø
- .274"
- Coolant
- Coolant-through
- Socket
- RKW30M
Machines
Machines this knob is listed for
BT30, 45°.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 / Mori Seiki | BT30 compact machines (Milltap 700, Accumill 4000, Ultimill, MAX3000, TV-300/400) and other DMG MORI BT30 machines | BT30 |
| Haas | BT30 machines (DT-1, DM-1, DT-2, DM-2 drill/mill centers)Builder p/n 04-1420 (TSC, 10-pack), 04-1422 (TSC, single) | BT30 |
JM Performance’s own machine guide lists this knob for Haas (BT30), Hyundai (BT30), Hyundai-Kia (BT30), Matsuura (BT30). 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
- .431"
- Neck Ø
- .274"
- Flange to start of angle (L1)
- .707"
- Flange to end of knob (L2)
- .904"
- Flange thickness
- .195"
- Flange (shoulder) Ø
- .648"
- Pilot Ø
- .492"
- Wrench flats
- .505"
- Coolant hole Ø
- .110"
- Thread
- M12
- Tightening socket
- RKW30M