Osg 404-750005 Square End Mill 3/4 in 4 Flute Solid Carbide

Product Description

The OSG 404-750005 is a solid carbide square end mill designed for precise milling operations in ferrous and non-ferrous materials. Built from micrograin carbide and finished with a TiN (titanium nitride) coating, this tool delivers extended wear resistance and improved surface finish across a wide range of cutting applications. The 4-flute spiral geometry with a 30-degree helix angle promotes efficient chip evacuation and stable cutting at elevated feed rates. At 0.75 inches in diameter with a 1.5-inch length of cut and 4-inch overall length, it suits both roughing and finishing passes in general machining environments. Centercutting capability allows direct plunge entry without pre-drilling.

This end mill is suited for use in CNC machining centers, manual mills, and production environments where consistent dimensional accuracy is required. The right-hand cut and right-hand flute configuration is standard for conventional milling setups. The regular-length geometry and 0.75-inch shank diameter make it a practical general-purpose tool for shops working in steel, stainless, cast iron, aluminum, and similar materials. It is commonly used in tool rooms, job shops, and production floors by machinists and CNC programmers running roughing or finishing operations.

Key Features

• Micrograin solid carbide construction for high rigidity and wear resistance
• TiN finish increases surface hardness and extends tool life
• 4-flute spiral design with 30-degree helix for smooth cutting action and chip flow
• Centercutting geometry allows direct plunge milling without a pilot hole
• Right-hand cut and right-hand flute for standard mill setups
• Regular length profile balances reach and rigidity for general-purpose use

Compatibility

Designed as an OEM-style replacement or direct tooling selection for standard ER, R8, CAT, BT, and HSK toolholders accepting a 0.75-inch shank diameter. Part of the OSG Series 404 end mill line.

Installation Notes

Installation should be performed by a qualified machinist. Secure the shank fully within the toolholder to the recommended gauge-line depth and torque the collet or set screw to toolholder manufacturer specifications. Confirm runout with a dial indicator before cutting. Always power down the spindle and engage the machine lock before changing tooling.