This is meant to be used with the following part.
https://www.shapeways.com/product/HTNWALR25/74mm-victorinox-pen-scale?optionId=150809379&li=shops
Before purchasing, please check Shapeways material guides (
https://www.shapeways.com/materials ) to make sure you know what you are getting.
Add a retractable pressurized Space Pen refill to your 74mm SAK! Check out Fisher Space Pen's story here:
https://www.spacepen.com/about-us.aspx
This replacement scale for any 74mm Victorinox Swiss Army Knife allows the use of the following Fisher Space pen pressurized ink refills (black, blue and red). You will also need to purchase the scale or buy them as a package (separate colors not available in package).
https://www.spacepen.com/BlackInkFinePointFisherUniversalRefill.aspx
https://www.spacepen.com/blueinkfinepointfisheruniversalrefill.aspx
https://www.spacepen.com/redinkfinepointfisheruniversalrefill.aspx
Instructions:
Measure about 4mm from the ink refill's "break point" and clip or cut it while supporting the break point so that it doesn't snap. Insert the slider into the scale and insert the refill into the slider.
Standard plastic scales pop off relatively easily with some kind of pry tool, and the replacement scale snaps on just as easily.