I just ordered a crb exposes blank blank reel seat and I’m. Curious as to how you go about getting it fitted correctly to the blank with no gaps. They only came in one size. Is it even possible or will it just not work

You have to use an insert. You glue the insert into the reel seat, then you use arbors to glue it to the blank. The actual blank isn't exposed on those type of reel seats unless the blank diameter where you want the seat just happens to match the inside diameter of the seat.

Ohhhhh I gotcha okay cool thanks man!!

Does anyone make a spinning seat that will keep the actual blank exposed, or are they all inserts? Havent ever used one of these and have been trying to figure it out by photos.

For a one piece exposed blank spinning reel seat the only one I know of is the PacBay GBS reel seat. It has a cut out for your thumb.
Not sure if they are still available. There are a number of two piece spinning seats that have the blank exposed, but I find them uncomfortable.
Norm

The only spinning seats that I know of that have the actual blank exposed are split seats like the Fuji SK2, ALPS SRSGS, Pac Bay Minima, etc.

You'll know if an insert is needed if the seat only comes in one size.

Don't waste money on a Pac Bay GBS if you can even find one.

If you can touch the blank in the reel seat center it's going to be massively uncomfortable your hand doesn't like being that closed over time, and you have no grip strength there. Ever saw a tool that has to have any force applied to it or from it with that size/style grip?

I’m fine with having a insert I just didn’t know because of there only being one size! That makes more sense the crb gce2 is very comfortable which is the one I have

Brandon,
If you want to use an exposed blank reel seat, then purchase one that is available in a range of sizes.
Then, measure the blank that you are going to use at the location where you are going to place the reel seat, and order the reel seat in that size.
As far as I am concerned, if a reel seat is only available in one size that causes one to use an arbor, I don't see the point of purchasing that reel seat. i.e. by installing an arbor in an exposed blank reel seat, you no longer have an exposed blank, unless you carve away the arbor where you want the blank exposed. But for me, that does not make sense, since in a practical sense you are left with a potentially deep hole that would make that reel seat uncomfortable to fish with.

Here is a pretty good article n reel seats and their selection:

[rodgeeks.com]

Then, for an example:

[mudhole.com]


Notice, there are size 16 and size 17 reel seats available.
Then, below, notice that you also need to specify, the size of the inside diameter of the reel seat.
Use a caliper on your rod blank at the location where you want to mount your reel seat
If you are ordering all of the components at the same time including the rod blank, ask the vendor to measure the rod blank at the location where you plan to mount your reel seat and they can do that for you to have a perfect fitting blank.
Many rod blanks are packed in a plastic sleeve. But the sleeve thickness is thin enough that it will have minimal effect on the measurement of the blank OD for the correct determination of the ID of the reel seat.

Best wishes

Casting Reel Seats with actual exposed blanks and not inserts (1 piece): Fuji ACS, ACSM, ECSM, R3200, R3201 & R3230. / 2 Piece: SK2 casting. Seaguide 2 Piece: HSC casting.

Spinning Reel Seat (No insert): Seaguide SAS (1 piece). 2 Piece: Fuji SK2 Spinning and Seaguide HSC spinning.

There are probably other brands but this is what I would use or have used. You will need to buy these by size or the size of where they will fit on the blank. Depending on the blank diameter, like Fuji Point Blank, you will have other options that would normally take an insert but because the blank diameter is so big near the butt, it would work without.

2 spinning reel seats are not very comfortable.

I don't know if we're talking about spinning or casting seats.