INT40 Taper

[DaedalusParticipant @daedalus]

Hi guys,

I know that someone here will be able to help with this one.

I have bought a new to me milling machine, a rare for the UK Ingers 2 universal with a full range of accessories, I should get it next week. The taper in the horizontal and vertical heads is INT40, but I am unsure of how it compares to BT or ISO, what it has in the way of threads and pull stud if any. Does anyone know of any comprehesive drawings and spec sheets for them? I have searched Google and others and cannot find quite what I am after.

Thanks in advance

[DaedalusParticipant @daedalus]

Drawings wanted

[DC31kParticipant @dc31k]

See:

https://www.tools-n-gizmos.com/specs/Tapers.html

https://www.cutwel.co.uk/blog/differences-between-bt-sk-iso-psc-hsk.html

https://en.wikipedia.org/wiki/Machine_taper#NMTB_taper_family

https://cdn.standards.iteh.ai/samples/4226/0e63bb1e284e4782981af8c6506ed54f/ISO-297-1988.pdf

I do not think there is a formal standard for INT40 or its various synonyms (40 INT, 40 International).

The grand daddy of them all is the US NMTB. All others are derivations of that. You will notice in ISO297, UNC drawbar threads are permitted as an alternative to metric.

[DaedalusParticipant @daedalus]

Posted by DC31k on 17/08/2023 18:40:41:

I do not think there is a formal standard for INT40 or its various synonyms (40 INT, 40 International).

I think that that is what I'm finding to be honest. No one seems to do INT40 at all. I use Cutwel for most of my machine toolholding and tooling and was hoping they would do something. I will probably get hold of an ISO40 from them and check to see if I can modify either the ISO40 toolholders or the machine to make the ISO40's fit. They are really nice and cheap from Cutwel and judging by the other stuff I have bought off them will be good enough quality for a machine that does less than 2000rpm, unless I stick an inverter on it.

Many thanks for your help with this.

Daedalus.

[Alan Waddington 2Participant @alanwaddington2]

Posted by Daedalus on 17/08/2023 18:13:12:

Hi guys,

I know that someone here will be able to help with this one.

I have bought a new to me milling machine, a rare for the UK Ingers 2 universal with a full range of accessories, I should get it next week. The taper in the horizontal and vertical heads is INT40, but I am unsure of how it compares to BT or ISO, what it has in the way of threads and pull stud if any. Does anyone know of any comprehesive drawings and spec sheets for them? I have searched Google and others and cannot find quite what I am after.

Thanks in advance

 

Was that the green one, with all the accessories, seller was retiring ? ……short answer to your question is you can use them all with a bit of fiddling about .

 

Edited By Alan Waddington 2 on 17/08/2023 21:18:37

[DaedalusParticipant @daedalus]

Posted by Alan Waddington 2 on 17/08/2023 20:59:45:

Was that the green one, with all the accessories, seller was retiring ? ……short answer to your question is you can use them all with a bit of fiddling about .

Edited By Alan Waddington 2 on 17/08/2023 21:18:37

Yes thats the one. I was looking to buy a new Chester mill, had put a deposit down and then spotted that one, along with all of the accessories so I canceled the order with Chester. As I thought that I was getting the Chester I have just taken delivery of a new dividing head, rotary table and vice. I'll have to try to sell those now.

As it happens I have had a couple of other people mention they had seen that Ingers machine for sale on Market Place.

[Alan Waddington 2Participant @alanwaddington2]

Posted by Daedalus on 17/08/2023 21:57:40:

Posted by Alan Waddington 2 on 17/08/2023 20:59:45:

Was that the green one, with all the accessories, seller was retiring ? ……short answer to your question is you can use them all with a bit of fiddling about .

Edited By Alan Waddington 2 on 17/08/2023 21:18:37

Yes thats the one. I was looking to buy a new Chester mill, had put a deposit down and then spotted that one, along with all of the accessories so I canceled the order with Chester. As I thought that I was getting the Chester I have just taken delivery of a new dividing head, rotary table and vice. I'll have to try to sell those now.

As it happens I have had a couple of other people mention they had seen that Ingers machine for sale on Market Place.

Absolute bargain, machines in that condition complete with original accessories are rare. Proper industrial quality, you 100% made the correct choice. Well done and enjoy .

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