Osg 70720716 Corner Radius End Mill 3/8 in Solid Carbide

Product Description

The OSG 70720716 is a solid carbide corner radius end mill designed for precision milling of non-ferrous metals and graphite. It features a 3/8 inch cutting diameter, a 0.015 inch corner radius, and 4 helical flutes with a 30-degree helix angle. The tool carries a CVD diamond coating, which provides exceptional hardness and wear resistance for extended tool life in abrasive materials. At 4 inches overall length with a stub-length flute configuration, this single-end mill balances rigidity with reach. It is suited for both roughing and finishing operations and is centercutting capable. Licensed machinists and CNC operators working in aerospace, automotive, and precision manufacturing shops are the primary users.

This end mill is built for machining non-ferrous metals such as aluminum, copper, and brass, as well as graphite and composite materials. The CVD diamond coating makes it particularly effective in highly abrasive applications where standard carbide tooling wears quickly. The extended reach design and 1-1/8 inch reach length allow access to features requiring clearance beyond the flute length. It mounts in a standard straight-shank toolholder and is compatible with CNC machining centers running right-hand cutting operations.

Key Features

• CVD diamond coating for superior wear resistance in non-ferrous and graphite applications
• 0.015 inch corner radius reduces stress concentration and extends tool life at the cutting edge
• 4 right-hand helical flutes with normal pitch for balanced chip evacuation in roughing and finishing
• Centercutting design allows plunge entry without a pre-drilled pilot hole
• Straight-cylindrical shank with h6 tolerance for precise toolholder fitment
• Extended reach construction with 1-1/8 inch reach length for deeper feature access

Compatibility

Designed for use with standard straight-shank toolholders in CNC machining centers. Primary workpiece materials are non-ferrous metals and graphite per Series 7072 application guidelines.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully powered down and locked out before changing tooling. Seat the shank fully into the toolholder to the recommended engagement depth and torque the set screw or collet to the toolholder manufacturer specification. Verify runout with a dial indicator before beginning a production run to protect both the tool and the workpiece.