Caliper rebuild day 3. More head wreck.

Caliper rebuild day 3. More head wreck.

Ok managed to drill out the bolts.
Got the caliper separated.
Next job is trying to get the pistons out.
Gobs***e here didn’t push them out fully before removing them from the bike.
Have been trying to get the farthest out piston out.
Using a mini vice grips with a old bike tube.
The f***er will not move. Flat out refusing to budge.
Once again.
Any tips?
Cheers for all the help.
Source: Caliper rebuild day 3. More head wreck.