origami roofs Posted November 18, 2009 Share Posted November 18, 2009 do you have to have a special tap for tweco tips? can you get the tap local? trying to build a torch. Quote Link to comment Share on other sites More sharing options...
David Einhorn Posted November 18, 2009 Share Posted November 18, 2009 do you have to have a special tap for tweco tips? can you get the tap local? trying to build a torch. Are you talking about "1/4"x 28 threaded "TWECO 14T" copper tip" mentioned onForge and Burner Design Page #1 ? I am a bit confused when you say you are trying to build a "torch", do you mean to say that you are building a gas forge or are you really building a torch? It sounds like a standard tap.Standard Tap and Drill Size Chart Quote Link to comment Share on other sites More sharing options...
RcRacer Posted November 18, 2009 Share Posted November 18, 2009 Tweco tip thread size for Miller welders are 1/4-28 but for Lincolns, I believe they are 6mm. Quote Link to comment Share on other sites More sharing options...
pkrankow Posted November 18, 2009 Share Posted November 18, 2009 I used Lincoln tips, 1/4 - 28. Most inexpensive tap and die sets do not include that particular size so you need to buy it separate. Taps of this size range are not expensive, and can be found at most hardware stores and big box places. If the kit came with a thread gage that size is probably not included on the gage. Phil Quote Link to comment Share on other sites More sharing options...
RcRacer Posted November 19, 2009 Share Posted November 19, 2009 I used Lincoln tips, 1/4 - 28. Most inexpensive tap and die sets do not include that particular size so you need to buy it separate. Taps of this size range are not expensive, and can be found at most hardware stores and big box places. If the kit came with a thread gage that size is probably not included on the gage. Phil The larger, L250, gun uses a Tweco 14 tip which is 1/4 -28 but the smaller L100 that is on the 175amp welders is a Tweco 11. That thread size is M6-1.0. When I built my "Frosty" T jet burner, I fabricated the tip holder and had to use an M6 tap to thread the contact tip ( nozzle ). Just to be sure, I just measured one when I got home from work ;) Quote Link to comment Share on other sites More sharing options...
pkrankow Posted November 19, 2009 Share Posted November 19, 2009 Good to know. I used tips from Lowe's. I lack a welder. Phil Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.