JM71122HS
BT40 retention knob, 15° (also called 75°), M16, coolant-through, 9310H- Taper
- BT40
- Style
- JIS B 6339 / DIN 69872 style (15°)
- read from the dimensions
- Angle
- 15° (also called 75°)
- Thread
- M16
- Flange to end of knob
- 1.024"
- Knob Ø
- .747"
- Neck Ø
- .549"
- Coolant
- Coolant-through
- Socket
- RKW40
Machines this knob is listed for
BT40, 15° (also called 75°), JIS B 6339 / DIN 69872 style (15°).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.
We haven’t listed this knob for a machine yet. Send us your make, model and serial number and we’ll check: call the counter at 408-834-8656, or ask on a quote.
JM Performance’s own machine guide lists this knob for Chiron (BT40), Doosan (BT40), Hurco (BT40), Kitamura (BT40), Kiwa (BT40). 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
- .747"
- Neck Ø
- .549"
- Flange to start of angle (L1)
- .787"
- Flange to end of knob (L2)
- 1.024"
- Flange thickness
- .157"
- Flange (shoulder) Ø
- .902"
- Pilot Ø
- .668"
- Wrench flats
- .746"
- Coolant hole Ø
- .218"
- Thread
- M16
- Tightening socket
- RKW40