Osg HP434-3753 Corner Radius End Mill 3/8 in 4 Flute Tialn

Product Description

The OSG HP434-3753 is a solid carbide corner radius end mill designed for high-performance material removal in demanding machining applications. With a 3/8 inch diameter, a 0.03 inch corner radius, and four right-hand spiral flutes, this tool combines edge strength with surface finish capability in a single pass. The TiAlN PVD coating provides thermal resistance and hardness, extending tool life when cutting at elevated temperatures. At 2.5 inches overall length with a 1 inch length of cut, it fits standard toolholders used in vertical machining centers and CNC mills. This tool is installed and used by machinists and tool and die professionals working in precision manufacturing environments.

The HP434-3753 is suited for both roughing and finishing operations across a wide range of workpiece materials. Its medium helix geometry and normal pitch support stable cutting in steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and hard materials. The centercutting design enables plunge entry, adding flexibility in programming. The straight cylindrical shank with h6 tolerance mounts directly into standard collet chucks and shrink-fit toolholders without modification.

Key Features

• 0.03 inch corner radius reduces stress concentration at the cutting edge and improves corner durability
• TiAlN PVD coating rated for high-temperature cutting in ferrous and hard materials
• Centercutting geometry allows plunge milling and ramping operations
• Four-flute, right-hand spiral design supports both roughing and finishing in a single tool
• Medium helix angle promotes chip evacuation and cutting stability
• No chipbreaker and no coolant-through construction keeps setup straightforward for standard applications

Compatibility

Designed for use with standard collet, hydraulic, and shrink-fit toolholders accepting a 3/8 inch straight cylindrical shank. Compatible workpiece materials include steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and hard materials as designated by material codes P, M, K, N, S, and H.

Installation Notes

Installation is performed by a machinist or CNC setup technician. Ensure the machine spindle is fully stopped and the toolholder is released from the spindle before changing tooling. Verify shank seating depth and runout with a dial indicator before beginning a cut. Consult the machine tool manufacturer and OSG cutting data recommendations for appropriate speeds and feeds for the target material.