Osg 5415000 Square End Mill 1in 6 Flute Hss 4.125in Oal

Product Description

The OSG 5415000 is a 6-flute, single-end square end mill designed for material removal and finishing operations in machining environments. Built from M42 high speed steel with a bright, uncoated finish, this tool handles milling tasks in ferrous and non-ferrous metals where HSS tooling is the preferred choice. The 30-degree spiral helix angle promotes efficient chip evacuation and smooth cutting action. With a 1 inch cutting diameter and a 1.875 inch length of cut, it suits slotting, profiling, and peripheral milling on manual mills and CNC machining centers. Weighing 0.62 pounds, it fits standard tool holders with a 0.75 inch shank.

This end mill is a general-purpose tool used in job shops, production machining, and maintenance repair applications. The right-hand cut and right-hand flute orientation are standard for conventional vertical milling setups. The Series 541 designation places this tool in OSG regular-length square end mill lineup, appropriate for applications where extended reach is not required. Machinists and tool-and-die technicians typically select this tool for full-slot and side-milling passes in mild steels, alloy steels, and similar machinable materials.

Key Features

• 6-flute design increases feed rate potential and improves surface finish compared to fewer-flute tools
• M42 high speed steel construction provides heat resistance and edge retention in demanding cuts
• 30-degree helix angle promotes chip flow and reduces cutting pressure
• Center-cutting geometry allows plunge entry into workpieces
• Bright, uncoated finish suits a wide range of cutting fluid and material pairings
• Right-hand cut with spiral flutes for standard milling spindle direction

Compatibility

Designed as a standard-shank square end mill for use in 0.75 inch collets, end mill holders, and Weldon-style tool holders on vertical milling machines and CNC machining centers.

Installation Notes

Installation and tool changes must be performed with the spindle fully stopped and machine power locked out per standard shop safety procedure. Ensure the shank is fully seated and the holder is torqued to the machine manufacturer specification before beginning a cut. Confirm runout with a dial indicator before engaging the workpiece. Consult applicable OSHA and machine manufacturer guidelines for safe tooling practices.