Herkules Brand Jewelers Saw Blades Are Made In Germany To The Highest Standards. The Herkules Brand Is Very Well Known In The United States And Europe. These Are Herkules White Label Saw Blades, Recognized For Being Sharp, True And Long Lasting. Many Jewelers Insist On Using Hercules White Label Saw Blades. Jewelers Saw Blades Are 130 Mm (5.125") Long And Are Used In Jeweler's Saws And Fretsaws. They Will Not Fit Coping Saws.