Osg 404-0938 Square End Mill 3/32 in 4 Flute Carbide

Product Description

The OSG 404-0938 is a solid carbide square end mill designed for precision milling operations in metalworking and machining environments. With a 3/32 inch (0.0938 inch) cutting diameter and four spiral flutes at a 30-degree helix angle, this end mill delivers efficient chip evacuation and a smooth finish on a range of ferrous and non-ferrous materials. The micrograin carbide construction provides hardness and edge retention suited to demanding cuts. It is a right-hand cut, right-hand flute, center-cutting tool, meaning it can be used for both peripheral milling and plunge cutting. Machinists and tool-and-die professionals working with CNC mills or manual knee mills are the primary users of this tool.

This end mill is suited for slotting, profiling, and light plunge operations in precision machining applications. Its compact 3/32 inch diameter makes it appropriate for fine detail work, small-radius features, and tight-tolerance slots where larger tooling cannot reach. The 1/8 inch shank diameter fits standard ER or collet toolholding systems commonly found in small-part machining setups. The regular-length geometry and 5/16 inch length of cut make it a practical choice for shallow-to-moderate depth passes in production and tool room environments.

Key Features

• Solid micrograin carbide construction for hardness and edge retention
• 4-flute spiral design with 30-degree helix angle for efficient chip flow
• Center-cutting capability allows direct plunge entry
• Right-hand cut and right-hand flute configuration for standard spindle use
• Uncoated finish suitable for use with cutting fluid on a variety of materials
• Compact 3/32 inch diameter for fine detail and small-feature milling

Compatibility

Designed as an OEM-style replacement or standard tooling selection for CNC and manual milling machines accepting a 1/8 inch shank diameter via collet or ER-style toolholding systems.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer guidelines for toolholding and runout tolerance. Ensure the spindle is fully stopped and the machine is in a safe state before inserting or removing the end mill from the collet or chuck. Confirm shank engagement depth meets the toolholder minimum grip length before operation. Follow applicable shop safety practices and machine guarding requirements during setup.