Osg HP432-1182 Corner Radius End Mill 3mm 2 Flute

Product Description

The OSG HP432-1182 is a solid carbide corner radius end mill designed for high-performance material removal in demanding machining applications. Built to the HP432 series specification, it features a 3 mm cutting diameter, a 0.50 mm corner radius, and a TiAlN (PVD) coating that extends tool life when cutting abrasive and hard materials. The 2-flute, right-hand spiral geometry with a medium helix and coarse pitch promotes efficient chip evacuation during roughing operations. At 60 mm overall length with an 8 mm length of cut, this single-end, centercutting tool mounts in standard straight-shank toolholders and is installed by machinists and CNC tooling technicians in production and job-shop environments.

The HP432-1182 is suited for roughing and finishing passes across a broad range of workpiece materials including steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and hard materials. Its corner radius geometry reduces edge chipping and stress concentration at the tool-workpiece interface, making it particularly useful in high-feed profiling, slotting, and pocket milling where tool breakage is a concern. The straight-cylindrical shank seats in collet chucks, shrink-fit holders, and hydraulic chucks sized for a 6 mm bore.

Key Features

• 3 mm cutting diameter with 0.50 mm corner radius for reduced edge stress and longer tool life
• TiAlN PVD coating rated for steel, stainless steel, cast iron, superalloys, titanium, and hard materials
• 2-flute right-hand spiral with coarse pitch optimized for roughing and chip clearance
• Centercutting design allows plunge entry without pre-drilling
• Solid carbide construction provides rigidity and heat resistance at elevated cutting speeds
• 6 mm straight-cylindrical shank (h6 tolerance) fits standard precision toolholders

Compatibility

Designed for use with standard straight-bore toolholders accepting a 6 mm shank diameter, including collet chucks, shrink-fit holders, and hydraulic chucks. Suitable for CNC machining centers and milling machines running right-hand spindle rotation.

Installation Notes

Installation and tool changes must be performed with the machine spindle fully stopped and locked out per applicable shop safety procedures. Verify toolholder bore diameter and runout before seating the shank to the specified h6 tolerance fit. Torque retention screws or collet nuts to toolholder manufacturer specifications — do not use impact tools on precision toolholders. Confirm cutting direction is set to right-hand rotation before initiating the program.