Osg 82011121 Square End Mill 3/4 in 5 Flute Solid Carbide

Product Description

The OSG 82011121 is a solid carbide square end mill designed for precision milling in demanding metal-cutting applications. With a 3/4 inch mill diameter and a 3 inch length of cut, this five-flute tool delivers high material removal rates while maintaining surface finish quality. The variable helix geometry reduces harmonic vibration during cutting, extending tool life and improving cut stability. A Duarise coating adds wear resistance and thermal protection, making this end mill well-suited for hardened steels and high-alloy materials. Micrograin carbide construction provides the edge retention required for consistent performance in production environments. Licensed machinists and tool-and-die professionals are the primary installers and users of this tool.

This end mill is used in CNC machining centers, vertical mills, and manual knee mills for slotting, profiling, and peripheral milling operations. It is a single-end, right-hand cutting tool with right-hand flute direction, making it compatible with standard spindle configurations. The 3/4 inch shank diameter fits standard ER and end mill holders of the corresponding bore size. Its 6 inch overall length accommodates moderate-reach applications without sacrificing rigidity. This tool is appropriate for shop-floor production, tool rooms, and maintenance machining environments working with ferrous and non-ferrous materials.

Key Features

• Variable helix design reduces chatter and vibration during aggressive cuts
• Duarise coating provides thermal resistance and extended wear life
• Micrograin solid carbide substrate delivers superior edge retention
• Five flutes allow higher feed rates compared to standard four-flute designs
• Center-cutting capability enables plunge entry into workpieces
• Right-hand cut and right-hand flute direction for standard spindle compatibility

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide end mill for CNC and manual milling machines accepting a 3/4 inch shank end mill holder.

Installation Notes

Installation should be performed by a qualified machinist familiar with toolholder torque requirements and runout specifications. Ensure the spindle is fully stopped and the machine is powered down before seating or removing the tool from its holder. Use a properly sized collet or end mill holder that matches the 3/4 inch shank diameter to maintain concentricity. Follow the machine manufacturer guidelines and shop safety protocols when setting cutting parameters.