When getting started in locksport, it's very useful to have a lock with grub screws. This will help you change pins and springs quickly in a lock without needing the skills to be able to gut and reassemble it the traditional way.
This can be useful when learning how to gut and reassemble a lock, as well as when working on progressive pinning, or adding security pins to a lock for learning.
Some items needed, example links, you may need to find it elsewhere depending on which country you are in:
M4 tap and 3.3mm drill bit https://www.amazon.com/gp/product/B07...
M4 grub screws https://www.amazon.com/gp/product/B01...
2mm allen key (or size that goes with the grub screws you purchase)
A lock that you're going to do this to
To learn more about how to gut and reassemble a lock: • [L15] Repinning and Gutting Locks - A How ...