Solid Carbide End Mill 12mm 12x45x100xD12D1 (Cutting diameter): 12mm L2 ( Length of cut): 45mm L1 (Total length): 100mm D2 (Shank diameter): 12mm Z (Number of cutting edges): 6 Helical pitch: 45 Ultrafine carbide grade specially developed for machining hardened steels Adapted rake angle for safe milling up to 70 HRC Defined cutting edge preparation for homogeneous wear Reduce the axial depth of cutting with increasing hardness For roughing and finishing * MADE IN GERMANY * Cooling: air