Six Dozen Penguin Silver Reverse Flying Dutchman Scroll Saw Blades! One Dozen of 6 Different Sizes Variety Intro Pack. One Dozen of 6 Different Sizes #2/0, #1, #3, #5, #7, #9. Top-grade wood-cutting fretsaw with double teeth and hardened steel The FD-PSR blades double teeth allow it to be a little less aggressive than the FD-SR. All these blades are 5 inches long and Pinless.