Osg VGM5-0052 Corner Radius End Mill 0.25in 5 Flute

Product Description

The OSG VGM5-0052 is a solid carbide corner radius end mill designed for demanding material removal in ferrous and high-strength workpiece materials. Built on the VGM5 series platform, it carries a 0.25-inch mill diameter, a 0.5-inch length of cut, and a 0.01-inch corner radius that reduces edge chipping and extends tool life at the cutting edge. The EXO coating provides elevated hardness and thermal resistance, making this tool well suited for both roughing and finishing operations. Right-hand cutting and right-hand flute spiral geometry with a high helix angle and variable index contribute to improved chip evacuation and reduced chatter at the spindle.

This end mill is intended for use on CNC machining centers and manual mills in job shop, tool room, and production environments. It is engineered for cutting steel, stainless steel, cast iron, superalloys, titanium, and hard materials. The single-end, short-length design fits standard straight-cylindrical toolholders with a 0.25-inch shank. With five flutes and a normal pitch configuration, it supports both finishing passes and moderate stock removal in difficult-to-machine alloys where tool rigidity and coating durability are critical.

Key Features

• 0.01-inch corner radius reduces edge stress and extends tool life on hardened and abrasive workpieces
• EXO coating provides high surface hardness and heat resistance for steel, stainless steel, and superalloys
• Five-flute, variable index geometry reduces harmonic vibration and chatter during the cut
• High helix angle promotes efficient chip evacuation in deep-slot and side-milling applications
• Center-cutting design allows plunge entry without a pre-drilled pilot hole
• Solid carbide construction delivers stiffness and dimensional stability in high-feed applications

Compatibility

Designed for use with standard straight-cylindrical toolholders accepting a 0.25-inch shank diameter. Compatible with primary workpiece materials including steel, stainless steel, cast iron, superalloys, titanium, and hard materials as specified by OSG for the VGM5 series.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and the toolholder is clean and free of burrs before seating the shank. Verify runout with a dial indicator after clamping, as excessive runout accelerates wear on a five-flute geometry. Follow the toolholder manufacturer torque and clamping procedures for the specific holder style in use.