The Flying Dutchman Ultra Reverse #1 Six Dozen Scroll Saw Blade Pack contains six dozen size #1 Ultra Reverse scroll saw blades. Ultra Reverse blades are our top selling scroll saw blade. They have a unique design where every third tooth is reversed to prevent splintering on the underside of the project. They also have an aggressively fast cut, while at the same time being a smooth cut. Flying Dutchman scroll saw blades are 5" long and are pinless. They are all milled blades, which makes for a sharper cutting edge. Flying Dutchman blades are manufactured in Germany with top-grade, high-quality hardened steel.