AT3 taper ?

[steve_s]

So am I right that this is a AT3 taper

And if so do any of you guys have machines that can use this size ? as I have a quantity

that I want to move on I will list them if folks are interested.

Thanks

Steve

 

[Tiggy_dorset]

I'll take any BT30/INT30 holders if you have any

Top one might be a BT, but looks at least a 40, maybe even a 50.

Someone with a better eye will hopefully be along soon

 

[Hood]

Looks to be SK50

 

[Hood]

Also looks to be some HSK tooling in that pile.

Edit
On second thoughts doesn't quite look like it is HSK, maybe something similar.

 

[Maker]

That first one's a DV50 taper, it says on it.

 

[Tiggy_dorset]

http://www.qtstools.com/document_li...otating Holder Shank Differences CV-DV-BT.pdf


This might answer the question.

 

[Hood]

That first one's a DV50 taper, it says on it.

Which I believe is also called SK and a term I have heard more but maybe it just depends where your tooling originates

 

[Tiggy_dorset]

Quite possibly. Same tapers but different flange patterns. I think my mill is designed for INT30, but I happily use BT30's with a thread insert I machine myself to fit my machine and drawbar.

 

[Hood]

quite possibly. Same tapers but different flange patterns. I think my mill is designed for INT30, but I happily use BT30's with a thread insert I machine myself to fit my machine.

Yes but I think SK and DV are the same, could be wrong though as there are just so many variables around, even ones specific to machines such as the ones I have for the Chiron, they are a modified SK I believe.

 

[Hood]

.... I think my mill is designed for INT30, but I happily use BT30's with a thread insert I machine myself to fit my machine and drawbar.

Machines without a tool changer can usually be adapted to take any tool of the same taper. My Beaver NC5 is Int 40 but I have CAT, BT, INT etc, just machined different pullstuds for them, here are a couple I did.

One on left is for CAT or BT (Cant remember) and the one on the right is for Int, the lower one is for a different machine all together with a 30 taper.