Osg VG434-7503 Corner Radius End Mill 3/4 in 4 Flute Tialn

Product Description

The OSG VG434-7503 is a solid carbide corner radius end mill designed for high-performance metal removal in demanding machining applications. It features a 3/4 inch diameter, a 1/8 inch (0.1250 inch) corner radius, and four flutes ground from micrograin carbide stock. The TiAlN PVD coating provides thermal resistance and wear protection at elevated cutting speeds. With a 1-1/2 inch length of cut and 4 inch overall length, it handles both roughing and finishing passes in a single tool. A Weldon flat shank ensures positive drive retention in standard toolholders. It is installed and run by machinists and CNC operators in production and job-shop environments.

The VG434-7503 is suited for milling steel, stainless steel, cast iron, superalloys, titanium, and hard materials. The variable index flute spacing reduces harmonic chatter during aggressive cuts, making it effective in both roughing and finishing operations. Its centercutting geometry allows plunge entry, and the right-hand spiral flute direction is compatible with conventional vertical and horizontal machining centers. The Weldon flat shank seats securely in side-lock and shrink-fit toolholders commonly used in production environments.

Key Features

• 3/4 inch mill diameter with 0.0000 / -0.0015 inch diameter tolerance for precise fit
• 1/8 inch corner radius protects workpiece edges and reduces stress concentration at shoulders
• TiAlN PVD coating extends tool life in ferrous, superalloy, and hard-material cuts
• Micrograin solid carbide substrate supports high surface footage and rigid setups
• Centercutting design permits direct plunge milling without a pre-drilled entry hole
• Weldon flat shank provides positive drive engagement and prevents axial pull-out
• Variable index flute spacing reduces vibration and improves surface finish on long passes

Compatibility

Designed for use with standard Weldon flat toolholders accepting a 3/4 inch shank diameter. Suitable for machining steel, stainless steel, cast iron, superalloys, titanium, and hard materials as noted by the manufacturer for the VG434 series.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Always power down and lock out the spindle before changing tooling. Confirm the Weldon flat is properly aligned with the set screw before torquing the toolholder to prevent run-out. Verify spindle RPM, feed rate, and depth of cut against published cutting data for the specific workpiece material before beginning a cut.