[SEK22Hornet]

I bought both ER16 and ER32. I have a smaller machine that uses BT30 holders and on it I have several ER20, some ER16 and even a couple ER11 holders - I like to have different sizes available for different situations. Back to the pull studs for a second- I looked up the difference between the Haas and the Milltronics and I have a feeling the Haas will work - here are the dimensions I found - pretty close -

[ianagos]

I bought both ER16 and ER32. I have a smaller machine that uses BT30 holders and on it I have several ER20, some ER16 and even a couple ER11 holders - I like to have different sizes available for different situations. Back to the pull studs for a second- I looked up the difference between the Haas and the Milltronics and I have a feeling the Haas will work - here are the dimensions I found - pretty close -

Seems as though the angle where it grips is different.

[SEK22Hornet]

That and the couple thou difference in a couple dimensions were the only differences I could see - If i am correct the drawbar is a ball type so I suspect that the Haas would probably work just fine Once I get my machine running I'll probably want a few more holders - may try the Haas pull studs then.

[Brian L]

Are you kidding me? You are supposed to use the 60º pull studs, not the 45º pull studs that is used in a Haas. There is a considerable difference in the grip of the balls on the angle, and a change in length where the balls actually contact the pull stud, which will combined, make it much easier for a tool holder to get pulled out of the spindle taper. You want to risk a $5000 spindle repair to save a dollar or two on pull studs? Buy the right ones, they are commonly available from any supplier.