Osg VG441-5012 Square End Mill 1/2 in 4 Flute Solid Carbide

Product Description

The OSG VG441-5012 is a solid carbide square end mill designed for precision milling in demanding machining environments. It features a 1/2 inch cutting diameter, a 2-1/2 inch length of cut, and a 4 inch overall length with a 1/2 inch shank diameter. The four-flute spiral design runs at a 35-degree helix angle with a TiAlN coating, improving heat resistance and tool life in ferrous and hard materials. Machined from micrograin carbide stock, this end mill is built for high-speed finish and roughing passes where consistent geometry and edge retention are critical. It is installed and used by CNC machinists and tool-and-die professionals in shop and production environments.

This end mill is suited for milling slots, pockets, profiles, and contours in steel, stainless steel, cast iron, and similar materials. The centercutting geometry allows direct plunge entry without a pre-drilled hole, adding flexibility in multi-operation setups. Variable index flute spacing reduces chatter and harmonic vibration during aggressive cuts, making it a practical choice for both roughing and semi-finish passes. The right-hand cut and right-hand spiral flute configuration matches standard CNC spindle rotation.

Key Features

• Solid micrograin carbide construction for rigidity and edge retention
• TiAlN coating for elevated heat resistance and extended tool life
• 35-degree helix angle with spiral flute for efficient chip evacuation
• Centercutting design allows direct plunge entry
• Variable index flute spacing reduces vibration and chatter
• Right-hand cut, right-hand flute for standard CNC spindle use

Compatibility

Designed as a standard 1/2 inch shank square end mill compatible with CNC machining centers, knee mills, and other milling machines accepting 1/2 inch collets or end mill holders. Part of the OSG VG441 series.

Installation Notes

Installation is performed by a qualified machinist or CNC setup technician. Ensure the spindle is fully stopped and the machine is in a safe state before changing tooling. Seat the shank fully in the collet or end mill holder and torque to the tool holder specification before running. Verify runout with a dial indicator before committing to a production pass.