Osg 404-3937 Square End Mill 4 Flute Solid Carbide

Product Description

The OSG 404-3937 is a solid carbide square end mill designed for precise milling operations in metalworking and machining applications. Built from micrograin carbide, this single-end tool delivers sharp cutting edges and consistent performance in high-demand shop environments. It features a 10 mm shank diameter, a 25 mm overall length, and a 4-flute geometry that supports efficient chip evacuation and smooth surface finishes. The bright, uncoated finish makes it well suited for general-purpose cutting where coating is not required. This end mill is installed and operated by machinists and CNC operators working in production and job-shop settings.

This end mill is intended for use in vertical machining centers, CNC mills, and manual knee mills where a compact, short-reach tool is appropriate. The 25 mm overall length suits tight-clearance setups and applications requiring close spindle-to-workpiece proximity. Right-hand cutting direction and right-hand flute direction follow standard tooling conventions. The centercutting capability allows plunge milling in addition to peripheral and slot milling operations.

Key Features

• Micrograin solid carbide construction for edge retention and rigidity
• 4-flute design supports higher feed rates and improved surface finish
• Centercutting geometry enables plunge, slot, and peripheral milling
• Right-hand cut and right-hand helix for standard CNC and manual mill compatibility
• Bright/uncoated finish suitable for general-purpose machining
• Compact 25 mm overall length for close-clearance setups

Compatibility

Designed as a standard-fitment square end mill for CNC machining centers and manual mills accepting a 10 mm round shank. No specific model compatibility data was provided for this part.

Installation Notes

Installation is performed by a qualified machinist or CNC operator. Ensure the spindle is fully stopped and the machine is in a safe, powered-down state before inserting or removing the tool from the holder. Use an appropriate collet or end mill holder rated for the 10 mm shank diameter and verify runout with a dial indicator before cutting. Follow the machine manufacturer and tooling manufacturer feed and speed guidelines for the workpiece material.