interact 4 pull stud/retention knob style?

[camarogod98]

Need to know what type of pull stud/ retention knob you guys use on your BT40 spindle interact 4 mills. will the interact 412 one work?

None of the tool companys can tell me what one it takes and dealing with bridgeport is a waste of time....they are rude and dont even want to deal with you.

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[randykj]

Did you figure this out? I have a 412v, I don't know what pull studs to use.