Osg 28730050 Square End Mill 0.5in 3 Flute Solid Carbide Dlc

Product Description

The OSG 28730050 is a solid carbide square end mill designed for high-performance milling of non-ferrous metals. With a 0.5-inch cutting diameter, 3 helical flutes, and a diamond-like carbon (DLC) coating, this tool delivers excellent chip evacuation and surface finish in aluminum, copper, brass, and similar workpiece materials. The extended-reach design features a neck diameter of 0.461 inches and a reach length of 2.205 inches, making it well suited for pocketing and profiling operations where standard-length tooling cannot access the cut zone. Right-hand flute direction and right-hand cutting action are standard. The tool is center-cutting, allowing direct plunge entry.

This end mill belongs to OSG Series 2873 and is built for machinists working in job shops, production facilities, and aerospace or general manufacturing environments where non-ferrous material removal is routine. The stub flute length of 0.75 inches keeps deflection low during aggressive cuts. Extended reach of 2.205 inches accommodates deeper setups without requiring custom tooling. The straight-cylindrical shank with h6 tolerance provides a secure fit in standard ER collet chucks, side-lock holders, and shrink-fit toolholding systems.

Key Features

• DLC (diamond-like carbon) coating optimized for non-ferrous metal cutting
• 3-flute helical geometry with right-hand cut and right-hand flute direction
• Center-cutting design allows direct plunge milling
• Extended reach: 2.205 inches neck reach with 0.461-inch neck diameter
• Stub length of cut (0.75 inches) minimizes deflection in aggressive operations
• h6 shank tolerance for precise fit in precision toolholders
• Mill diameter tolerance: 0.0000 to -0.0008 inches

Compatibility

Designed for use in CNC machining centers and manual mills equipped with standard 0.5-inch toolholding systems. Primary workpiece material designation is non-ferrous metal (material code N), including aluminum, copper, and brass alloys.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the spindle is fully stopped and the machine is in a safe state before changing tooling. Use a calibrated torque wrench when tightening collet nuts to avoid damaging the shank or toolholder bore. Confirm runout at the cutting edge with a dial indicator after installation before beginning a cut cycle.