Osg 3056333 Ball End Mill 0.1575 in 2 Flute Solid Carbide

Product Description

The OSG 3056333 is a 2-flute solid carbide ball end mill engineered for high-precision finishing in hard materials and hardened steels. With a 4.00 mm (0.1575 inch) mill diameter and a 30-degree medium helix angle, it delivers controlled chip evacuation and consistent surface finish in demanding applications. The extended long-neck geometry features a 3.85 mm neck diameter and 16.80 mm neck length, providing clearance for deep-pocket and cavity work without sacrificing rigidity. A DUROREY PVD coating reduces heat buildup and extends tool life when cutting ferrous and hard-alloy workpieces. This tool is intended for use by machinists and tool-and-die professionals running CNC milling operations.

The OSG 3056333 is designed for roughing and finishing operations in hard materials, with a primary application in high-hardness steels and a secondary application in general steel. The extended reach and long neck make it well suited for deep-pocket contouring, mold and die cavities, and precision profiling passes where standard-length end mills cannot reach the workpiece. Single-end construction and a straight-cylindrical shank allow direct installation in standard collet chucks and hydraulic toolholders.

Key Features

• 4.00 mm (0.1575 inch) ball nose diameter with 2.00 mm nose radius for fine contour work
• DUROREY PVD coating rated for hard material and hardened steel cutting
• Extended long-neck design: 16.80 mm neck length, 3.85 mm neck diameter for deep-reach access
• 30-degree medium helix angle with helical flute geometry for smooth chip flow
• Right-hand cut and right-hand flute direction; single-end construction
• Mill diameter tolerance of 0.005 mm for repeatable high-precision fitment

Compatibility

Part of the OSG Series 8590 high-precision finishing long-neck carbide ball end mill line, designed for use in hard materials (Material Code H) and steel (Material Code P). Straight-cylindrical shank accepts standard collet and hydraulic toolholding systems sized for a 6.00 mm shank.

Installation Notes

Installation should be performed by a qualified machinist familiar with CNC toolholding practices. Ensure the machine spindle and toolholder are clean and free of runout before seating the straight-cylindrical shank. Confirm collet or chuck clamping torque follows the toolholder manufacturer specification for the shank diameter. Coolant-through is not supported on this tool; use external coolant or air blast as appropriate for the workpiece material and cutting parameters.