Osg 3056196 Ball End Mill 0.0315 in 2 Flute Solid Carbide

Product Description

The OSG 3056196 is a 2-flute solid carbide ball end mill engineered for high-precision finishing operations in hard and high-hardness steel materials. With a 0.0315-inch (0.80 mm) mill diameter and a 0.40 mm nose radius, this tool is purpose-built for tight-tolerance work in die, mold, and hardened steel applications. The extended long-neck design provides 12.10 mm of reach length with a 0.75 mm neck diameter, allowing access to deep pockets and confined features without sacrificing rigidity. A 30-degree medium helix angle and right-hand helical flutes promote clean chip evacuation during both roughing and finishing passes. The DUROREY PVD coating improves wear resistance and surface finish retention in hard material cutting conditions. This tool is sold as a single-end cutter and is intended for use by machinists and toolroom professionals.

The OSG 3056196 belongs to OSG Series 8590, a line of high-precision long-neck carbide ball end mills optimized for hard material and steel machining. With a 4.00 mm straight-cylindrical shank and 45.00 mm overall length, this mill is suited for CNC machining centers and high-speed spindles used in die and mold work, precision part profiling, and finish contouring in hardened steels. The 0.60 mm length of cut keeps the cutting zone short and controlled, minimizing deflection at this diameter. It is intended for use in applications where surface finish and dimensional accuracy are critical, particularly in materials classified under hard material (H) and steel (P) workpiece categories.

Key Features

• 0.0315-inch (0.80 mm) ball end diameter with 0.005 mm mill diameter tolerance for high-precision fitment
• DUROREY PVD coating for enhanced wear resistance in hard and high-hardness steel cutting
• Extended long-neck geometry with 12.10 mm reach and 0.75 mm neck diameter for deep-pocket access
• 2-flute solid carbide construction provides rigidity and surface finish quality at small diameters
• 30-degree medium helix angle with right-hand helical flutes for effective chip evacuation
• Single-end design on a 4.00 mm straight-cylindrical shank compatible with standard CNC toolholders

Compatibility

Designed as an OEM-style cutting tool for CNC machining centers and high-speed milling applications requiring a 4.00 mm straight-cylindrical shank. Suited for primary workpiece materials classified as hard material (H) and steel (P) per OSG Series 8590 application guidelines.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the spindle fully stopped and machine in a safe, powered-down state. Use a precision collet or shrink-fit toolholder appropriate for the 4.00 mm shank diameter to minimize runout at this small cutting diameter. At 0.80 mm mill diameter, excessive clamping force or toolholder runout will significantly impact tool life and part accuracy. Verify shank seating depth and runout with a dial indicator before engaging the workpiece.