Help on big thread

Would any of you fine gentlemen in this forum have tools (or acces to tools) to cut an outside M32x1,5 thread

i need this for a modification of an M4 upper reciever

help desperately needed

More details please.

Material in which thread should be cut/milled?

Length of thread?

Thread on a separate tube/rod that can be chucked up in lathe?

It would be great if you describe the mod you have in mind.

Kindest regards.
Jati

JatiMatic wrote:

More details please.

Material in which thread should be cut/milled?

Length of thread?

Thread on a separate tube/rod that can be chucked up in lathe?

It would be great if you describe the mod you have in mind.

Kindest regards.
Jati

Yep Jati, valid point

it is an m4 upper reciever (made of lightweight metal)
so the part can be mounted in a lathe - but it is not that easy
next the part already have the diameter 32mm, over a length of app. 21mm

So my first thought was if someone had a handtool

Thank's for the details.

Sorry, but I can't help you. My lathe doesn't have enough spindle bore to chuck up a complete M4 upper.

Also I don't have a threading die in that size (32x1,5).

If you find someone with a suitable thread-cutting die, please don't forget to undercut the mentioned part (approx 0,3 mm down to 31,7 mm), otherwise you will get problems to cut the thread.

Kindest regards.
Jati

Here you go.

http://www.rotagriponline.com/index.php?page=shop.product_details&flypage=shop.flypage&product_id=1815&category_id=383&option=com_virtuemart&Itemid=29

Sadly large dies are not cheap

Hope this helps

8ace

Many thanks to both of you

8ace - thats the stuff i was searching and a bit cheaper than what i found

still the cost of such a die is . . . high

but thanks for looking into it

If your happy buying from China, Aliexpress have some righthand M32X1.5 dies for about £14

If it helps i've got a lot of stuff from various suppliers on Aliexpress and never had a problem.

8ace