National Torch tips?

[stacievan]

I have an 8M National torch. I want to start using Boro, but I am considering getting a larger tip. There is a larger tip SM-21 tip.



Does anybody have experience using this torch with this tip? or do you have an opinion?

Stacie

[lripster]

Hi Stacie,

I've been wanting this tip, and am just about to order it. I think you have to get the premix adapter too, though, but I could be wrong.

I run my 8M on two oxycons and the 7 port tip, and it does a good job with smaller boro work. I tried a marble about 1 1/2 inches and got really tired!!

Does anyone know if you have to use the adapter with it?

[stacievan]

I don't think that you need the adapter. I believe it is a surface mix. My understanding is that you just unscrew the tip that is on there now and screw the new one on. I will probably call first. $107 is kind of steep, but I wont have to change torches, so cheaper in the long run.
Stacie

[jokersdesign]

no you don't need the premix adapter, unless you want to work with premix tips.

you just need the sm21 tip and screw it in.

[lripster]

Very good to know. Thanks, guys.