Osg 82004621 Square End Mill 3/32 in 4 Flute Solid Carbide

Product Description

The OSG 82004621 is a solid carbide square end mill designed for precision milling operations in metalworking and machining applications. With a 3/32 inch (0.0938 inch) mill diameter and 4 flutes, it delivers efficient material removal and smooth surface finishes in tight-tolerance work. The micrograin carbide construction provides hardness and wear resistance suitable for cutting ferrous and non-ferrous materials. A Duarise coating adds surface protection and extends tool life under demanding cutting conditions. Variable helix and variable index geometry reduce harmonics and chatter during cuts, improving accuracy and finish quality.

This end mill is used in CNC machining centers and manual mills for slotting, profiling, and peripheral milling in small-diameter applications. The centercutting design allows plunge entry directly into the workpiece, expanding its range of use without a pre-drilled pilot hole. With a 1/8 inch shank diameter and 2 inch overall length, it fits standard collets and tool holders common in production and toolroom environments. Machinists working on precision components, mold work, or intricate part features will find this tool well-suited to close-tolerance cutting tasks.

Key Features

• 3/32 inch (0.0938 inch) mill diameter with plus 0.0000 / minus 0.0012 inch tolerance
• 4-flute, right-hand cut and right-hand flute direction for standard milling operations
• Solid micrograin carbide construction for hardness and edge retention
• Duarise coating for extended tool life and reduced wear
• Variable helix and variable index geometry to reduce chatter and improve finish
• Centercutting design allows direct plunge entry into the workpiece

Compatibility

Designed as a direct-fit replacement end mill for standard 1/8 inch collets and tool holders used in CNC and manual milling machines. OSG Series 8200.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the spindle fully stopped and machine power locked out per shop safety procedures. Ensure the collet and tool holder are clean and free of chips before seating the shank. Verify runout with a dial indicator after clamping to confirm proper seating. Follow machine manufacturer guidelines and applicable shop safety codes when setting cutting parameters.