Brass Pen Tubes 10" x 7mm - Pack of 10 Rollerball Pen Kits #2 Morse Taper Maxi-Mandrel -

#2 Morse Taper Maxi-Mandrel - This new mandrel features a 7mm mandrel shaft that slides through a headstock collet

What truly sets the Gentleman's apart is its fast-action threading — the cap attaches and detaches with just 1½ turns

collectors

Mik's Mechanical Pen Blanks - Sierra #2571-2574

5 mm Pen tubes - Pack of 6

Brass Pen Tubes 10" x 7mm - Pack of 10 Rollerball Pen Kits #2 Morse Taper Maxi-Mandrel -10 inch x 7mm Pen tubes Pack of 10 Have you ever found yourself short on tubes because of a ruined blank? Ever want to modify the tube length of a pen kit? Problem solved! Make spare tubes by cutting these 10 inch tubes to the exact size you need.