This dahlia is done with rose cutters and a daisy cutter.
I used the second daisy cutter of the set of 3 I have, and I began using the second smallest rose cutter onwards as I increased the size of the flower.
For each succeeding petal layer, I cut out 1-2 more petals than the previous.
For instance, my first layer had 14 petals, second layer had 15, third had 16.
Amazing thank you for sharing, can't wait to have a try.