Flying Dutchman 6 Dozen Reverse Tooth Scroll Saw Blades 6 different sizes (FD-SR Scoll Reverse) Variety Intro Pack One Dozen of Six Different Sizes #1, #3, #5, #7, #9, #12 (72 Blades) Flying Dutchman Blades they cut straighter, last longer and leave you with less sanding to do. High-quality steel, these blades are cut to precise tolerances, and it shows in the performance. For added strength, the Reverse-Tooth blade design guarantees you less sanding time. All these blades are 5 inches long and Pinless.