Montblanc Ballpoint Extenders parker 50 I've used these in my

I've used these in my own restorations with very good and consistent results

This is the original Expert design that has two bulbous gold plated bands on the cap

History and development process of writing instruments

Start out going into the opening GENTLY with a #39 drill bit and work your way up to a #33

And this tool works well on the 256 also

Montblanc Ballpoint Extenders parker 50 I've used these in myLength extenders for Montblanc ballpoint pens. Allows for the use of modern ballpoint refills in older Montblanc ballpoints. The newer refills are shorter, so these adapters extend the length about 1 2" so the newer refills will fit in the older pens. Pop in (not screw). **Note: This item is the green extender only. Fillers not included.