37" Single 301BD Diamond Blade. A standard copper based diamond blade for all Gryphon Band Saws (except the AquaSaw XL and the C-40 Tall) and any other saw using a 37" blade. This is the blade that comes on the standard C-40 Band Saw. These blades have a copper substrate and are recommended for all applications other than fragging coral. For coral, please order the stainless steel blades.