Osg HP434-5003 Corner Radius End Mill 1/2 in 4 Flute Tialn

Product Description

The OSG HP434-5003 is a solid carbide corner radius end mill designed for high-performance material removal in demanding machining applications. With a 0.5 inch mill diameter, 1 inch length of cut, and a 0.03 inch corner radius, it delivers controlled edge strength and surface finish in a single tool. The 4-flute, right-hand spiral design supports both roughing and finishing operations. A TiAlN (PVD) coating provides heat resistance and extended tool life when cutting ferrous and hard materials. This end mill is suited for use in CNC machining centers with standard toolholders.

The HP434-5003 is built for machinists working with steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and hard materials. It fits production and job-shop environments where a single-end, centercutting tool is required for profiling, slotting, and contouring operations. The 3 inch overall length and 0.5 inch straight-cylindrical shank make it compatible with standard collet chucks and end mill holders. The normal pitch and medium helix angle support chip evacuation across a range of cutting conditions without requiring coolant-through capability.

Key Features

• 0.03 inch corner radius reduces stress concentration and extends edge life on profiling passes
• TiAlN PVD coating provides thermal resistance for dry and semi-dry cutting in hard and ferrous materials
• 4-flute, right-hand spiral geometry supports both roughing and finishing in a single tool
• Centercutting design allows plunge entry without a pre-drilled pilot hole
• Solid carbide construction delivers rigidity and dimensional stability under high feed rates
• Normal pitch, medium helix balances chip evacuation and surface finish across multiple workpiece materials

Compatibility

Compatible with standard straight-cylindrical collet chucks and end mill holders accepting a 0.5 inch shank diameter. Designed for use in CNC machining centers processing steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and hard materials. Part of the OSG HP434 series.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Ensure the machine spindle is fully stopped and the toolholder is clean and free of debris before seating the shank. Verify shank engagement depth meets toolholder manufacturer minimums to prevent pullout under cutting loads. Confirm runout with an indicator after clamping before initiating the first cut.