Standardendmill

Standardendmill, in English commonly called a standard end mill, is a cutting tool used in milling machines and CNC mills for general material removal. It features cutting edges along the peripheral surface and typically at the tip, allowing milling in the axial direction. Most standard end mills are center-cut, enabling plunging into the workpiece, though non-center-cut designs exist for special cases.

Construction and materials: End mills are usually cylindrical with a shank that fits the tool holder. They come in various diameters, flute counts, and lengths. Common cutting materials are high-speed steel (HSS) and carbide; many tools are coated with wear-resistant layers such as TiN, TiCN, or AlTiN to extend life and enable higher speeds. Coatings and substrate choices affect rigidity, heat resistance, and compatibility with different workpiece materials.

Geometry and variants: Flute counts typically range from 2 to 6 or more. Fewer flutes offer larger chip clearance and are often preferred for softer materials; more flutes provide a smoother finish for finishing passes. Helix angles generally fall in the 15 to 45-degree range. Variants include center-cut versus non-center-cut, straight-flute versus helical designs, and specialty geometries for finishing, roughing, or threading.

Applications and usage: Standard end mills are used for slotting, pocketing, contouring, profile milling, and surface finishing across metals, plastics, and wood. Selection depends on workpiece material, desired finish, step-over and step-down, and machine rigidity. Proper speeds, feeds, and fixturing are essential to avoid chatter, tool wear, or breakage.

See also: carbide end mill, HSS end mill, coatings, milling guidelines.