Brass Tubes - 7mm Replacement brass tubes to suit Slimline and Streamline Pen kits. Price is for a pair of brass tubes to suit the Slimline and Streamline pen kits. Tooling Requirement Drill bit required -7mm
“Instead of breaking open pen packs I now have enough spare tubes to prepare several blanks at once.
Leaving my pen sets unopened until I need them. They are consistently fine. Thank you”
