Regal Beloit EM-15.5-58-4F-HSS Ball End Mills

Regal Beloit EM-15.5-58-4F-HSS Ball End Mills are high-speed steel, four-flute ball-nose cutters engineered for precise contouring of rounded features in molds, dies, and other 3D components. They feature a nominal 15.5 mm cutting diameter with a 5/8 in (0.625") shank, delivering a robust core for rigidity and stable engagement when working on curved surfaces. Ball-end cutters produce hemispherical cutting action that creates smooth radii and rounded transitions across complex geometries, making them ideal for finishing contours on molded parts and die cavities. The four-flute configuration provides multiple cutting edges to maintain efficient material removal and a consistent surface finish under typical light-to-medium feed conditions in common machining materials. Regal's end mills are part of the Regal Cutting Tools lineup, a family of HSS end mills designed for mold making and prototyping applications.