Osg 404-2344 Square End Mill 15/64 Inch 4 Flute Carbide

Product Description

The OSG 404-2344 is a solid carbide square end mill from OSG Series 404, designed for precise milling operations in metal, composites, and engineering plastics. The cutter features a 15/64 inch (0.2344 inch) mill diameter with a 3/4 inch length of cut and a 1/4 inch shank diameter. Overall length is 2-1/2 inches. Four spiral flutes with a 30-degree helix angle provide efficient chip evacuation and smooth cutting action. The centercutting geometry allows plunge entry into the workpiece. This end mill is manufactured from micrograin solid carbide and left uncoated, making it well suited for applications where coating compatibility or surface finish tolerance is a primary concern. Machinists and tool-and-die shops are the primary users.

The OSG 404-2344 is suited for light to medium milling operations including slotting, profiling, and plunge cutting. The regular-length body fits standard toolholders and collet chucks with a 1/4 inch bore. Right-hand cut and right-hand flute configuration is compatible with conventional CNC machining centers, knee mills, and manual milling machines. The uncoated micrograin carbide substrate performs reliably in ferrous and non-ferrous materials. This end mill ships as a single unit and is intended for professional machine shop environments.

Key Features

• 15/64 inch (0.2344 inch) mill diameter for precise, close-tolerance cuts
• Solid micrograin carbide construction for rigidity and wear resistance
• 4 spiral flutes with 30-degree helix angle for efficient chip removal
• Centercutting design allows direct plunge entry into the workpiece
• Right-hand cut and right-hand flute for standard CNC and manual mill setups
• Uncoated finish suitable for applications where bare carbide is preferred

Compatibility

Designed as a direct-fit replacement or standard addition for 1/4 inch shank toolholders and collet chucks used in CNC machining centers and manual milling machines requiring a 15/64 inch square end mill.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Power down and lock out the machine spindle before inserting or removing the end mill from the toolholder or collet chuck. Ensure the collet bore matches the 1/4 inch shank diameter before tightening. Inspect the cutting edges and shank for damage before each use; carbide end mills are brittle and should not be dropped or used in worn toolholders that allow runout.