If you are planning to carry out an ignition cylinder replacement all by yourself, it is only proper that you know the right tools to use. Even though the tools you need will vary depending on the kind of car you have, generally, you will need the following:
Pick, awl, or pocket screwdriver
Screwdrivers
Safety glasses
Repair manual or access to a repair database.
With these, you can easily maneuver an ignition key replacement process.