There's a spinner in front that's for drilling and in this case also some warding. If you mean the quarter turn before the lock actually turns then that's just a function of how disc detainer locks work
@@reinderstegen I was talking about the spinner in front. Btw. based on your videos and the lockpicking subreddit, which also referenced your videos, I got myself some ICS cylinders, and they are really nice. Not sure why EVVA is bullshitting so much with the 4KS. Could have been a good lock.