I recieved my Heine sight set today but the nut socket isnt here yet so I'll have to wait a little longer. It only took 2 3days for the sights. I ordered 2 different one is the driver style and the other looks like a tube. I thought I could turn down a socket but I didnt have one long enough but still the wall thickness must really be thin. Looking at the clearance around one side of the nut Im wondering how this is going to go. I wonder what Glock used because this is going to be touch and go with any "thin" walled socket. Is this typical? the counter bore area around the nut is not concentric to the nut by an stretch of the definition. Hope this doesn't get to be a problem. Im thinking the wall of the socket will need to be paper thin. Maybe thats why the life expectancy of the tools is short lived as I read about it.