Osg 88300409 Square End Mill 3/8 Inch 3 Flute Carbide

Product Description

The OSG 88300409 is a solid carbide square end mill designed for precision milling operations in metalworking and machining environments. With a 0.375-inch mill diameter, 0.875-inch length of cut, and 3-inch overall length, this tool is built for tight-tolerance profiling, slotting, and peripheral milling. The DLC-IGUSS coating provides enhanced wear resistance and reduced friction at the cutting edge. Three flutes with a variable helix angle improve chip evacuation and reduce chatter, making this end mill well suited for demanding material removal applications. A licensed machinist or CNC operator typically selects and installs this tool.

This end mill is configured for right-hand cut with right-hand flute direction and is centercutting, allowing plunge entry into the workpiece. The 3/8-inch shank diameter fits standard collets and end mill holders on vertical machining centers, CNC mills, and manual knee mills. The variable helix geometry helps manage vibration during long tool engagement passes, making it a practical choice for both roughing and semi-finishing cuts in steel, stainless, and similar alloys. Individual packaging with a minimum order quantity of 1 makes it easy to replace a single tool as needed.

Key Features

• Solid carbide construction for rigidity and extended tool life
• DLC-IGUSS coating for reduced friction and improved wear resistance
• Variable helix angle reduces chatter and improves surface finish
• Centercutting design allows direct plunge entry
• Right-hand cut and right-hand flute for standard CNC and manual mill setups
• 3-flute geometry balances chip clearance with cutting edge strength

Compatibility

Designed as an OEM-style replacement end mill for use in standard 3/8-inch collets and end mill holders on CNC machining centers and manual vertical mills.

Installation Notes

Installation is performed by a qualified machinist or CNC operator. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Seat the shank fully into the collet or end mill holder and torque the retention mechanism according to the toolholder manufacturer specifications. Verify runout with a dial indicator before beginning a production cut.