Osg 82002821 Square End Mill 0.75 in 4 Flute Solid Carbide

Product Description

The OSG 82002821 is a solid carbide square end mill designed for precision milling operations in ferrous and non-ferrous materials. Built on OSG's Series 8200 platform, this tool features a 0.75 inch cutting diameter, a 1.625 inch length of cut, and a 4 inch overall length. The Duarise coating provides enhanced surface hardness and wear resistance, extending tool life in demanding cutting environments. A micrograin carbide substrate contributes to edge stability at elevated cutting speeds. The variable helix and variable index geometry reduce harmonic vibration and chatter, improving finish quality and dimensional accuracy. This end mill is used by CNC machinists and tool-and-die professionals in production and job-shop settings.

The OSG 82002821 is suited for milling operations requiring a standard 0.75 inch shank for direct chuck or collet retention. The straight flute configuration, right-hand cut, and right-hand flute direction make it compatible with conventional vertical and horizontal machining centers. The centercutting capability allows plunge entry, giving machinists flexibility for slotting, profiling, and pocket milling in a single tool. With a regular length designation and no extended reach, this tool is optimized for rigidity in typical depth-of-cut applications rather than deep-cavity work.

Key Features

• Duarise coating for improved wear resistance and reduced friction
• Micrograin solid carbide substrate for edge strength and heat resistance
• Variable helix and variable index geometry reduce chatter and improve surface finish
• Centercutting design allows plunge milling without a pre-drilled entry hole
• 4-flute straight configuration balances chip evacuation with cutting edge count
• Mill diameter tolerance of +0.0000 / -0.0012 inches ensures consistent fit and finish

Compatibility

Designed as a direct-fit replacement for applications requiring a 0.75 inch shank, 0.75 inch diameter square end mill in OSG Series 8200 configurations. Verify spindle collet or chuck bore size and machine spindle speed range before installation.

Installation Notes

Installation should be performed by a qualified CNC machinist or toolroom professional. Power down and lock out the machining center before loading or changing tooling. Ensure the shank is fully seated and properly torqued in the collet or chuck per the machine tool manufacturer's specifications. Inspect the cutting edges for damage or coating wear before each use and confirm runout with a dial indicator after tool setting.