Osg 403-098411 Square End Mill 0.0984 in 3 Flute Carbide

Product Description

The OSG 403-098411 is a solid carbide square end mill designed for precision milling operations in metalworking and machining applications. It features a 0.0984 inch (2.50 mm) cutting diameter, a 0.315 inch (8.00 mm) length of cut, and a 0.1181 inch (3.00 mm) shank diameter. The three-flute, right-hand spiral design runs at a 30-degree helix angle, which balances chip evacuation with cutting stability in demanding materials. A TiAlN coating extends tool life in high-temperature cutting environments. Machinists, toolroom operators, and CNC programmers working in production or job shop settings are the primary users of this tool.

This end mill is rated for use in steel, stainless steel, cast iron, aluminum and non-ferrous metals, and hardened materials, covering ISO material groups P, M, K, N, and H. It is built for general-purpose slotting, profiling, and peripheral milling operations where a compact cutting diameter and short reach are required. The regular length designation and single-end configuration make it a standard choice for tight-tolerance work in CNC machining centers and manual mills where tool clearance is a factor.

Key Features

• Solid carbide micrograin substrate for rigidity and wear resistance in ferrous and non-ferrous materials
• TiAlN coating provides oxidation resistance and maintains hardness at elevated cutting temperatures
• 3-flute geometry with 30-degree right-hand spiral helix for efficient chip flow and surface finish
• Centercutting design allows plunge entry as well as conventional peripheral and slot milling
• Single-end, right-hand cut configuration suitable for standard CNC and manual milling setups
• 0.0984 inch (2.50 mm) cutting diameter targets small-feature and fine-detail machining tasks

Compatibility

Designed for use in CNC machining centers and manual milling machines that accept a 0.1181 inch (3.00 mm) shank diameter. Suitable for cutting steel, stainless steel, cast iron, aluminum and non-ferrous alloys, and hardened materials per OSG Series 403 application guidelines.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Secure the shank in a collet or end mill holder rated for the 0.1181 inch shank diameter, ensuring full and even clamping engagement. Power down and lock out the spindle before tool changes. Verify runout with an indicator after mounting, as excessive runout in small-diameter carbide tooling accelerates edge chipping and premature tool failure.