How To Remove Damaged Grub Screw From Surfboard Fin Box (Method #2) -Kook Shed 

hope this helped you mate! good luck and let us know how you went. cheers -KS

Cheers. This did work. Have also noticed that a real Allan key is a better fit than a well used key jobbie. @@kookshed

@@bmgreet1755 glad it helped mate! thanks for the positive feedback. and ha yes the old worn out fin key can do more harm than good! cheers -KS