Osg 404-4331-BN Ball End Mill 4 Flute Solid Carbide

Product Description

The OSG 404-4331-BN is a solid carbide ball end mill designed for precision milling across a wide range of materials, including steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and hard materials. It features an 11 mm (0.4331 inches) cutting diameter, a 4-flute helical geometry with a 30-degree helix angle, and a bright uncoated finish. The micrograin carbide substrate delivers the hardness and edge retention needed for both roughing and finishing passes. This tool is suited for machinists and tool-and-die professionals working on CNC machining centers requiring consistent ball-nose profile accuracy.

This end mill belongs to the OSG 404BN series and is configured as a single-end, right-hand cut and right-hand flute tool with a straight-cylindrical shank. It is appropriate for a broad range of machining applications in job shops, production environments, and toolrooms where accurate contour milling, 3D profiling, and finishing of complex surfaces are required. The standard-length configuration and 25 mm length of cut make it well-suited for general-purpose work where extended reach is not needed.

Key Features

• Solid micrograin carbide construction for high hardness and wear resistance
• 4-flute helical design with 30-degree helix angle supports both roughing and finishing operations
• Bright uncoated finish suitable for non-ferrous metals and applications where coating is not preferred
• Right-hand cut and right-hand flute configuration for standard CNC spindle compatibility
• Straight-cylindrical shank for secure, accurate toolholder engagement
• Rated for use on steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and hard materials

Compatibility

The OSG 404-4331-BN is compatible with workpiece materials classified under ISO material groups P (steel), M (stainless steel), K (cast iron), N (non-ferrous metal), S (superalloys and titanium), and H (hard materials). It fits standard toolholders accepting an 11 mm straight-cylindrical shank.

Installation Notes

Installation should be performed by a qualified machinist familiar with CNC tooling setup and safe tool-change procedures. Ensure the machine spindle is fully stopped and the tool carousel or turret is in a safe position before mounting or removing the end mill. Confirm the toolholder bore matches the 11 mm shank diameter and that the tool is secured to the recommended clamping torque specified by the toolholder manufacturer. Inspect the cutting edges for chips or damage before each use.