4 Dozen Spiral Reverse Flying Dutchman Scroll Saw Blades Variety Intro Pack You get Four DOZEN Blades ! Get One Dozen of each Size ... #2/0, 1, #3, #5 hese are the only Spiral blades that have Reverse Teeth. These blades will give you a much smoother cut with less fuzz and sanding. You will also have better control scrolling than any other spiral blades. All blades are 5"s long and pinless.