tube for Sierra

[retiredtog]

Does anyone know where I can order extra tubes for the Sierra or Wall ST. II pens? Neither AS or WC have them listed.

Thanks,
Jerry

 

[wdcav1952]

Jerry,

Given the group buy and the popularity of the Sierra, they are likely on back order most places. I just ordered a few Sierra Kits from Beartoothwoods, and the tubes are on back order.

 

[gerryr]

If they have the right diameter, PSI sells tube material in 10"(I think) lengths that you can cut to whatever length you need.

 

[retiredtog]

Thanks, no big hurry, can wait till they get restocked.

 

[Randy_]

PSI, according to their catalog, sells five different types/sizes of brass tubing:
7mm x 10" universal,
8mm x 10" universal,
8mm x 10" pencil,
3/8" x 10" universal and
10mm x 10" universal.

The stated diameter is nominal, I assume , and not the exact size. Tubes also vary in wall thickness so a PSI 7mm tube may not work with every vendors 7mm kits. There have been some posts reporting this very problem.

The Sierra kit requires a 27/64" drill bit which is half a thousandth less than 10.7 mm and 0.028" larger than 10mm so I don't think the PSI tubes will work with the Sierra kit??

 

[csb333]

I think it is 3/8". (ID), however if you go to a hobby shop the brass tubes there have a thicker wall.

 

[Randy_]

Originally posted by csb333
<br />I think it is 3/8". (ID), however if you go to a hobby shop the brass tubes there have a thicker wall.

3/8" is 9.5mm???