Osg 70720816 Corner Radius End Mill 1/2 in 4 Flute Diamond

Product Description

The OSG 70720816 is a solid carbide corner radius end mill designed for high-performance material removal in non-ferrous metals and graphite. It features a 1/2 inch cutting diameter, a 0.015 inch corner radius, and four flutes arranged in a right-hand spiral with a medium helix for efficient chip evacuation. The CVD diamond coating provides exceptional hardness and wear resistance, making it well suited for abrasive workpiece materials that would rapidly wear uncoated carbide. At 6 inches overall length with a 1/2 inch straight-cylindrical shank, this single-end, centercutting tool handles both roughing and finishing operations in one setup. Licensed machinists and CNC operators install this tool in compatible toolholders.

This end mill is built for use in applications involving non-ferrous metals such as aluminum, copper, and brass, as well as graphite and composite materials. The extended reach design, with a 1.5 inch reach length and 0.475 inch neck diameter, allows access to deeper features or stepped pockets while maintaining rigidity. Its stub-length flute geometry at 1/2 inch length of cut keeps deflection low during aggressive cuts. It is suited for CNC milling centers running right-hand cutting operations with standard toolholder setups.

Key Features

• CVD diamond coating for superior wear resistance in abrasive and non-ferrous materials
• 0.015 inch corner radius reduces stress concentrations and extends tool life at part edges
• Centercutting geometry allows plunge entry without a pre-drilled pilot hole
• Extended reach with 1.5 inch reach length and reduced 0.475 inch neck diameter for deep-feature access
• Right-hand flute direction and right-hand cutting for standard CNC spindle operation
• Handles both roughing and finishing material removal types in a single tool

Compatibility

Designed for use with standard CNC milling toolholders accepting a 1/2 inch straight-cylindrical shank. Primary workpiece materials are non-ferrous metals and graphite, per OSG Series 7072 design intent.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Power down and lock out the spindle before inserting or removing the tool from the toolholder. Verify shank seating depth and runout with a dial indicator before beginning a cut. Do not exceed the toolholder manufacturer's recommended torque for the retention knob or collet nut.