Osg VG441-7509 Square End Mill 3/4 Inch 4 Flute Solid Carbide

Product Description

The OSG VG441-7509 is a solid carbide square end mill designed for high-performance milling in demanding metal-cutting applications. Built to the VG441 series specification, it features a 3/4-inch cutting diameter, a 2-1/4-inch length of cut, and a 5-inch overall length on a 3/4-inch shank. The TiAlN coating provides oxidation resistance and extended tool life at elevated cutting temperatures. The 35-degree helix angle promotes efficient chip evacuation and smooth cutting action, making this tool well-suited for roughing and finishing passes in ferrous and non-ferrous materials. Installation and operation are performed by machinists and tooling professionals using CNC machining centers or manual mills.

This end mill is configured for right-hand cut and right-hand flute rotation with a spiral flute geometry and variable index spacing that helps reduce chatter during aggressive cuts. The centercutting design allows for direct plunge operations without a pre-drilled pilot hole, adding versatility in multi-axis setups. It is suited for mold and die work, general-purpose profiling, slotting, and contouring in shop environments where consistent dimensional accuracy is required. The regular length classification fits standard toolholder reach requirements in most vertical and horizontal machining centers.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard-material applications
• TiAlN finish for high-temperature performance and extended tool life
• 35-degree helix angle promotes efficient chip flow and reduced cutting forces
• Centercutting geometry allows direct plunge milling without a pilot hole
• Variable index flute spacing reduces harmonic chatter during high-feed passes
• Right-hand cut and right-hand flute for standard CNC and manual mill spindle compatibility

Compatibility

Designed as an OEM-style solid carbide square end mill for use in standard 3/4-inch tool holders and collet chucks on CNC machining centers and manual vertical mills.

Installation Notes

Installation is performed by qualified machinists following shop tooling procedures. Secure the shank fully within a collet, shrink-fit holder, or end mill holder to the manufacturer-recommended engagement depth before running. Verify spindle direction is set to right-hand rotation before powering the machine. Inspect the cutting edges for chipping or wear before each setup, and replace the tool if edge integrity is compromised.