Core Trainer: Expand on our practice locks with this kit of different keyways The most popular keyway shapes in North America are SC1, Y1, KW1, WR5. Getting to practice lock picking on these different keyways improves your general skills and muscle memory. These individual cores are designed to work with any of our cut away, progressive or clear locks All our current practice locks come with an SC1 keyway so by adding this set of KW1,Y1, WR5 you will now be able to practice picking the big box four If you do not have it already a plug follower and tweezers will be very handy to have when switching out cores. Check out this video by Lock Noob (Note that Lock Noob shows Heavy Bars and a Patch as well – Go to 4.01 in the video to only view the Core Trainer)
