For damaged key extraction, auto locksmiths thoroughly get rid of fragments from locks and ignition cylinders
https://g28carkeys.co.ukuvfe348.lumenforgex.com/posts/10-sites-to-help-you-to-become-an-expert-in-automotive-locksmith
For broken key extraction, auto locksmiths thoroughly get rid of pieces from locks and ignition cylinders. They minimize damage and after that create a replacement key that works properly.