Osg 447-7500 Square End Mill 3/4 in 4-flute Solid Carbide

Product Description

The OSG 447-7500 is a solid carbide square end mill designed for precision milling operations in metalworking and machining environments. Built from micrograin carbide, it delivers consistent cutting performance and edge retention across a wide range of ferrous and non-ferrous materials. The tool features a 3/4 inch cutting diameter, a 1-1/2 inch length of cut, and a 4 inch overall length, making it a regular-length option suited to standard milling depths. With four flutes and a 30-degree helix angle, it balances material removal rate with surface finish quality. This end mill is center-cutting, allowing direct plunge entry into workpieces where required.

The OSG 447-7500 is intended for use in CNC machining centers and manual milling machines operating in production and job-shop settings. Its right-hand cut with left-hand flute geometry, combined with the spiral flute design, promotes efficient chip evacuation during climb and conventional milling passes. The uncoated micrograin carbide construction makes it suitable for use with cutting fluids in ferrous materials and dry cutting in certain non-ferrous applications. Machinists and CNC operators in industrial manufacturing, tool and die, and general machining will find this a practical regular-length workhorse end mill.

Key Features

• Solid micrograin carbide construction for wear resistance and consistent edge retention
• 3/4 inch cutting diameter with 1-1/2 inch length of cut
• 4-flute, spiral flute design with 30-degree helix angle
• Right-hand cut, left-hand flute geometry for efficient chip evacuation
• Center-cutting capable — allows plunge milling entry
• Uncoated finish suitable for use with cutting fluids or dry in select applications

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide square end mill for standard 3/4 inch collet or end mill holder setups in CNC and manual milling applications.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator following the machine tool manufacturer guidelines. Secure the shank fully in a properly sized collet, end mill holder, or milling chuck, ensuring runout is within acceptable limits before beginning a cut. Verify spindle speed and feed rate parameters are set appropriately for the workpiece material before engaging the cutter. Inspect the cutting edges for chips or wear before each use and replace if edge integrity is compromised.