While I'm sure this isn't the last time I'll be here looking for help I still can't help feeling that I'm either as dense as a rock or I'm missing a part for my Lee press. I have a single stage press and I have the shell holders but I cannot figure out how to install the shell holder onto the shaft. By the pictures I have found online it looks like I'm missing something but I don't know what it's called nor can I find a reference to it in the parts lists.
Here's a picture of the top of the shaft and also a shellholder in the background. What's the name of the missing piece? Am I going to feel like an idiot when you guys figure it out?