Osg 402-2656 Square End Mill 17/64 Inch 2 Flute Carbide

Product Description

The OSG 402-2656 is a solid carbide square end mill designed for precise milling operations in metal and engineering-grade materials. Built on OSGs Series 402 platform, this tool features a 17/64 inch (0.2656 inch) cutting diameter and a 2-flute spiral configuration with a 30-degree helix angle. The micrograin carbide substrate delivers hardness and edge retention suited to demanding cutting environments. At 0.07 pounds, it is a compact tool with a 5/16 inch shank diameter and 3/4 inch length of cut. It is centercutting capable, allowing direct plunge entry. Machinists and tool-and-die professionals are the primary users of this end mill.

The 402-2656 is intended for general-purpose milling in shop environments handling ferrous and non-ferrous metals. The regular-length geometry and 2-1/2 inch overall length make it well suited to standard CNC machining centers and manual knee mills with appropriate collet holders. Its right-hand cut and right-hand flute configuration matches conventional spindle rotation on most production machine tools. The uncoated finish makes it a straightforward option for applications where coating compatibility is a consideration or where re-sharpening is part of shop workflow.

Key Features

• Solid micrograin carbide construction for edge retention and rigidity
• 17/64 inch (0.2656 inch) cutting diameter with 3/4 inch length of cut
• 2-flute spiral design with 30-degree helix angle for efficient chip evacuation
• Centercutting geometry allows direct plunge milling
• Right-hand cut and right-hand flute for standard spindle compatibility
• Uncoated finish suitable for applications requiring bare carbide or periodic resharpening

Compatibility

Designed as an OEM-style solid carbide square end mill for use in CNC machining centers and manual milling machines accepting a 5/16 inch shank collet or end mill holder.

Installation Notes

Installation is performed by a machinist or tooling technician. Always power down and lock out the spindle before inserting or removing tooling from a collet or end mill holder. Ensure the shank is clean and fully seated to the correct gauge-line depth before tightening the collet nut or set screw. Verify spindle speed and feed rate against the material being cut before engaging the tool.