As a retired machinist I recognize quality and these are nice quality parts!
Unfortunately they do not fit into the lock that I bought to practice on. I grabbed a lock at walmart with the 4 wheels like in the pictures.
The spacing between the wheels and the hole for the wheels is just too tight. i was able to get it part way in with effort but it was such a tight fit that I had to stop (even that warped the ez decoder)
I will keep them incase an older or looser lock comes along that needs open.
4th Jul 2018