Imperial to Metric threading

[Azathoth]

Has anyone used this tool?

 

http://www.airsoftparts.ca/store2/index.ph...products_id=930

 

i've searched several forums but havent had any guides or how to or reviews for this.

 

ANY help would be appreciated

[Stealthbomber]

What do you need to know?

 

It's an M31.8 x 1.5mm thread cutting die. It'll recut the threads on the receiver. It should cut through most pot-metal receivers like a knife through butter.

 

Interesting to note it has the size on it (M31.8 x 1.5). Might be worth having a look on ebay or elsewhere to see if you can pick up the same size for less cash.

I'm sure ICS M4 owners might be interested in this.Their receiver threads aren't cut very well.

[Azathoth]

What do you need to know?

 

It's an M31.8 x 1.5mm thread cutting die. It'll recut the threads on the receiver. It should cut through most pot-metal receivers like a knife through butter.

 

Interesting to note it has the size on it (M31.8 x 1.5). Might be worth having a look on ebay or elsewhere to see if you can pick up the same size for less cash.

I'm sure ICS M4 owners might be interested in this.Their receiver threads aren't cut very well.

 

I own a TM M4S and I purchased a G&P body and the Hurricane adaptor set for metal bodies. I tried installation and ran into the threading issue and after some digging I came up with this as the possible solution.

 

--I'm wondering what the difficulty of performing this fix is.

--What kind of damage I can do if I make a mistake.

--If anyone has done it do their weapon or had any experience with using the tool.

 

Thanks for the info on a cheaper alternative. I'm sure their are thread converters everywhere for industrial application that I could buy for less especially since in Canada we are metric and in the states they are mixed

[Stealthbomber]

Well, I don't think that will give you many problems. screw it CAREFULLY onto the thread at the front of your receiver and, after about a turn, it'll begin to tighten up.

Turn it half a turn back then a full turn forward.

Keep going like that until you've re-cut the thread.

 

Like I say, it should slice through it like a knife through butter.

Maybe you'll need to wrap a rag around it for better leverage.

 

If you screw up and screw it onto the receiver wonky you will make a right mess of the receiver. However, it should be pretty easy to see how you're doing.

As I say, screw it carefully on then take a look at it to make sure it looks square and isn't lopsided. If it is lopsided it means you've got it on cross-threaded. Carefully take it off and try again.

As long as you fit it squarely you can't really go wrong.

 

Glad you mentioned that really.

That is a tool that every ICS tech should have in his toolbox.

[Azathoth]

Well, I don't think that will give you many problems. screw it CAREFULLY onto the thread at the front of your receiver and, after about a turn, it'll begin to tighten up.

Turn it half a turn back then a full turn forward.

Keep going like that until you've re-cut the thread.

 

Like I say, it should slice through it like a knife through butter.

Maybe you'll need to wrap a rag around it for better leverage.

 

If you screw up and screw it onto the receiver wonky you will make a right mess of the receiver. However, it should be pretty easy to see how you're doing.

As I say, screw it carefully on then take a look at it to make sure it looks square and isn't lopsided. If it is lopsided it means you've got it on cross-threaded. Carefully take it off and try again.

As long as you fit it squarely you can't really go wrong.

 

Glad you mentioned that really.

That is a tool that every ICS tech should have in his toolbox.

 

I just wanted to follow up on this thread.

 

As stated above I own a TM M4S system. I bought a G&P Metal Body and when installing it I ran into the problem of the Delta Ring having the wrong type of threads.

 

It WAS NOT LIKE SLICING THROUGH BUTTER... Perhaps If my G&P body was pot metal it would have been very easy. However my body is aircraft grade aluminium and it took two people and a vice grip 1.5 hrs of cutting to get 1/2 way through the thread on the upper receiver.

 

If you are insistent on a high grade metal body. Then I STRONGLY suggest using cutting lubrication (oil or grease). You will only be able to turn the threading tool 1/16 - 1/8 or a rotation before having to back off and attempt to tighten. Each time you back off remove the threading tool to clear off the debris and re-lubricate both your receiver and the cutting tool. Buy two long bolts so that you can get more torque onto the cutting tool. A vice grip is also a requirement. I also suggest a wooden dowel or something to place into the inside of the body to prevent twisting and damaging your receiver.

 

 

 

Because of the pain this is causing I would not recommend any metal body upgrade that is not pot metal for a TM M4S.

 

Also If this is a tool that all ICS gunsmiths should have then I personally will never purchase an ICS gun.

 

 

I"ll keep everyone updated as I continue to assemble my Metal body.

[Danke]

I know this is a semi-dead thread but I ran across it on a whim.

 

When working alluminum or an alloy of use WD-40 as cutting oil.

[Docv400]

That's a pretty good price for such a specialist tool.

You won't find that size die anywhere else as it's a direct metric conversion from 1.25 inches.

Above 5.5mm, all metric thread sizes will be whole numbers only.

There's just no need for anything in between them.

I'm guessing it just re-cuts the threads to 60° from 55°?

The thread pitch must be the same, otherwise it would just make a complete mess of the threads.