Used only in surgery. When a bone is absolutely shattered,you need to use pins to put it back together. A Surgical Splint won't do it! Can only be used once you've opened an incision, of course.
To grow, plant a Surgical Tool Seed. (Or splice a High Tech Wall Seed with a Biohazard Sign Seed)
This item has no use... by itself.
A tree of this type can bear surprising fruit!