Watch bracelet pin extractor

I'm repairing my rubber watch bracelet. First problem was separate metal parts from rubber broken bracelet (I need to reuse them in my TPU bracelet design).
I found a small metal tool to push pin out of rubber bracelet, but was difficult to mantain the bracelet in correct position.
Then i built this simple clamp to help me in the work.

I printed
N.1 Main clamp
N.1 Cursor
N.1 Cursor screw
N.1 Block
N.2 Block screws
N.1 Extractor screw - in this one there is a hole to block metal tool extractor (Ø=1mm). See photos.