Osg VGM5-0263 Square End Mill 1in 5 Flute Solid Carbide Exo

Product Description

The OSG VGM5-0263 is a single-end square end mill from the VGM5 series, designed for high-performance milling in demanding cutting applications. Built from micrograin solid carbide and finished with OSG EXO coating, it offers exceptional wear resistance and thermal stability. The tool features a 1 inch cutting diameter, a 3 inch length of cut, and a 5-flute helical geometry with a 40-degree helix angle. Variable index flute spacing reduces harmonic chatter during aggressive passes. This end mill is intended for use by machinists and tool-and-die professionals working on CNC machining centers.

The VGM5-0263 suits precision milling operations in ferrous and hard materials where tool life and surface finish are priorities. Its right-hand cutting direction and right-hand flute orientation are standard for conventional CNC vertical and horizontal mill setups. The straight cylindrical shank measures 1 inch in diameter and seats directly into standard ER or end mill holders without adapters. With a 6 inch overall length and regular length classification, it fits most standard spindle clearances on production machining centers.

Key Features

• Micrograin solid carbide substrate for rigidity and extended tool life
• EXO coating provides high hardness and oxidation resistance at elevated cutting temperatures
• 5-flute helical design increases feed rates compared to 4-flute equivalents in finishing passes
• Variable index flute spacing suppresses chatter and improves surface finish
• 40-degree helix angle promotes smooth chip evacuation in deep-pocket milling
• Centercutting geometry allows plunge entry without pilot drilling

Compatibility

Designed as an OEM-style replacement and standard production end mill for CNC machining centers accepting a 1 inch straight cylindrical shank in standard ER collet chucks or end mill holders.

Installation Notes

Installation should be performed by a qualified machinist following shop safety protocols. Ensure the spindle is fully stopped and the machine is in an e-stop or lockout-tagout state before changing tooling. Seat the shank fully into the holder to the recommended gauge length and torque the set screw or collet nut to the holder manufacturer specification. Inspect the cutting edges and coating for chips or damage before each use.