Iscar 3398309 Square End Mill 0.5in 4 Flute Solid Carbide

Product Description

The ISCAR 3398309 is a solid carbide square end mill designed for precision milling operations in metalworking and machining applications. It features a 0.5 inch diameter with four flutes, a 1.25 inch length of cut, and a 38-degree helix angle. The cutting edges are coated with TiAlCN for improved wear resistance and heat tolerance at elevated cutting speeds. With a 3 inch overall length and a 0.5 inch shank diameter, this end mill fits standard collet chucks and milling tool holders used in CNC and manual vertical milling setups. It is centercutting, allowing plunge entry directly into workpiece material.

This end mill is suited for slotting, profiling, and pocket milling in ferrous and non-ferrous materials. The right-hand cutting and right-hand flute direction make it compatible with conventional CNC machining center spindle rotation. The variable index geometry combined with a spiral flute type helps reduce chatter during aggressive side milling passes. It is typically installed and used by machinists, CNC operators, and tool and die professionals working in job shops, aerospace component machining, and general precision manufacturing environments.

Key Features

• TiAlCN coating provides thermal and wear resistance for extended tool life
• 38-degree helix angle supports efficient chip evacuation and smooth cutting action
• Centercutting design allows direct plunge milling without pre-drilling
• Variable index flute spacing reduces harmonic vibration during heavy cuts
• Submicron carbide grade substrate delivers edge integrity at high feed rates
• Right-hand cut and right-hand spiral for standard CNC spindle compatibility

Compatibility

Designed as an OEM-style solid carbide square end mill for use in standard 0.5 inch collet chucks, shrink-fit holders, and side-lock milling tool holders on CNC machining centers and manual knee mills.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and locked out before changing tooling. Seat the shank fully into the tool holder to the minimum insertion depth recommended by the holder manufacturer before tightening. Confirm runout with a dial indicator after installation and before beginning a cut cycle.