Swann Morton scalpel blade extractor (single and box)

Made for Swann Morton no3 handle scalpel. Might fit other brand but I don't have them so I can't be sure.

**Two versions:**
- Single to just push the blade out.
- Box to extract and collect the blade in a sealed container. (you can't retrieve the blade!).

**Instructions:**
- Insert at an angle
- Align and pull
- Done