Glass Stopper Opener

A simple last-resort tool to open stuck ground glass stoppers.
Some precautions:
- try all other tricks in the book first
- glass can break if too much force is applied
- wear proper eye protection and leather gloves
- be prepared for whatever could happen in case the contents get spilled.

Use at your own risk.

I fitted this to the NS14.5 and NS29 standard stoppers I had around. They seem to be rather irregular though, mine had variations of more than 1.5mm. If you run into problems,