Osg 404-0984 Square End Mill 0.0984 in 4 Flute Carbide

Product Description

The OSG 404-0984 is a solid carbide square end mill designed for precise milling operations in a wide range of metalworking and machining applications. With a 0.0984-inch (2.50 mm) mill diameter and a 0.2362-inch (6.00 mm) length of cut, this tool handles slotting, profiling, and contouring in tight geometries where larger tooling cannot reach. The four-flute configuration and 30-degree helix angle promote efficient chip evacuation and smooth cutting action. Machined from micrograin solid carbide, it delivers the rigidity and wear resistance required for production environments. This end mill is typically installed by CNC machinists and tool-and-die professionals working on manual or CNC milling machines.

This end mill is well suited for precision work in ferrous and non-ferrous materials where a small-diameter, center-cutting tool is required. The right-hand cut and right-hand spiral flute geometry are standard for conventional and climb milling on vertical machining centers and manual knee mills. The uncoated finish makes it appropriate for applications where coating buildup could affect tolerances or where regrinding is anticipated. Its compact overall length of 38.00 mm (approximately 1.496 inches) keeps tool overhang minimal, supporting rigidity in high-precision setups.

Key Features

• 0.0984-inch (2.50 mm) mill diameter for small-feature and fine-detail milling
• Four flutes with 30-degree helix angle for efficient chip flow and surface finish
• Micrograin solid carbide construction for hardness and edge retention
• Center-cutting design allows direct plunge entry into workpieces
• Right-hand cut with right-hand spiral flute — standard for most milling setups
• Uncoated finish suitable for regrinding and use with cutting fluids

Compatibility

Designed as an OEM-style replacement or direct procurement tool within OSG Series 404 small-diameter solid carbide end mills. Confirm shank diameter (3.00 mm) compatibility with your collet or tool holder before installation.

Installation Notes

Installation should be performed by a qualified machinist familiar with tool holding and runout requirements for small-diameter end mills. Ensure the spindle and tool holder are clean and free of debris before seating the shank. Secure the tool to the manufacturer-recommended torque range for the collet or end mill holder in use. Small-diameter carbide tooling is brittle — avoid side loads or interrupted cuts beyond the tool's rated capacity, and never use this tool without confirming correct RPM and feed rate for the workpiece material.