Noob reloading question about dies, pls help

[Reaper of the apocalypse]

Hi, I'm realoading for 6.5x55 and I have some questions.

So below I've attached 3 pictures.
I used the die attached to the press, to deprime and I think partially resize my brass.
I then cleaned them in my tumbler, all good.


Now my primary question is, what do I do next and in what order?

In this photo, I know that the right two are the bullet seating die and factory crimp die. But what's that die on the left?


Lastly, what is this die for?

 

[bigedp51]

If a picture is worth a thousand words a video is worth ten thousand words and greatly reduces writers cramps.

 

[yomomma]

And a whole bunch of videos is worth even more...you have Lee dies, so watch Lee videos

https://leeprecision.com/single-station-die-adjustment.html

 

[Munkey1973]

In second picture, the die on left looks like a Collet Die. This sizes the neck only, so if the brass was fireformed in a different rifle, then don't use this die.... use a full length die instead.... as the others stated YouTube has a vast wealth of reloading knowledge.

 

[rf2]

The basic next steps are:
- check case mouths to make sure they were not peened while the cases were run though your tumbler
- measure case length and trim, chamfer and deburr if necessary
- prime
- powder
- seat bullet with die in the centre of the picture
- optionally you can add a crimp to the case mouth with the die on the right of the picture, but this is generally not necessary

Finally, you should sell me the collet neck die in the left of the picture because I don't have one, but I would really like one
As mentioned previously, you should only use this die on cases that were fired in your rifle and that will be fired in your rifle in the future. It would be used instead of the full-length die you already used. The die shouldn't be used on cases that will be fired in certain types of actions (semi-autos for example).
Actually, looking more closely at the die on the left, I noticed that it looks different from the Lee collet dies that I have. There should be a mandrel in the middle with a decapping pin at the end, and there should be a sleeve (the collet) inside the outer casing that slides up and down slightly when the ram is raised. Maybe the picture just isn't showing this but they are there? The die in the last picture just looks like another full-length sizing die, maybe from a different manufacturer, but I'm not positive on that one. Maybe show the rest of the markings?