A quick learner from jamestown ri says.
Andersen window screen metal spline.
I can not think of a way to remove it without twisting and or bending it too much to reuse.
Any suggestions as to removing carefully or replacing with a similar product.
The spline is white aluminum square stock.
The screen rolling tool you have should be fine to use.
We recommend our 59 250 screen spline for andersen screens but we find that the aluminum wire holds in better than fiberglass in these older frames.
With the screening tool place the wheel towards the outside of the spline and start rolling it in that way if you slip the wheel of the tool will jump on the outside of the screen instead on top of your new screening.