Iscar 3398993 Square End Mill 3/4 in 3 Flute Dlc Carbide

Product Description

The ISCAR 3398993 is a solid carbide square end mill designed for precision milling operations in metalworking and machining applications. It features a 3/4 inch cutting diameter, a 2-1/4 inch length of cut, and a 3-flute configuration with a 45-degree helix angle. The cutting edges are finished with a DLC (Diamond-Like Carbon) coating, which reduces friction and extends tool life in demanding cut conditions. The submicron carbide grade provides the hardness and toughness needed for high-performance material removal. This tool is installed and operated by machinists and CNC programmers working with milling machines and machining centers.

This end mill suits a range of milling operations including slotting, profiling, and peripheral milling on ferrous and non-ferrous materials. The variable index flute spacing helps reduce chatter and vibration during cuts. With a right-hand cutting direction and right-hand flute direction, it is compatible with standard spindle configurations. The single-end design and 5 inch overall length make it suitable for applications requiring extended reach within standard tool holders. It is used in job shops, production floors, and toolrooms handling close-tolerance work.

Key Features

• 3/4 inch cutting diameter with 2-1/4 inch length of cut for deep slot and profile work
• DLC coating reduces friction and improves wear resistance in high-speed applications
• 45-degree helix angle promotes smooth chip evacuation and improved surface finish
• Variable index flute spacing reduces harmonic vibration during milling
• Submicron solid carbide grade for enhanced hardness and edge retention
• Center cutting capable, allowing plunge entry into workpiece material

Compatibility

Designed as a direct-fit replacement-style solid carbide end mill for standard 3/4 inch collet chucks, shrink-fit holders, and Weldon-style tool holders used on CNC and manual milling machines.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the spindle fully stopped and machine power isolated per shop safety procedures. Verify holder bore diameter and runout before seating the shank to the specified gauge depth. Torque retention screws or collet nuts according to the tool holder manufacturer specifications. Inspect the cutting edges under magnification before first use and after any crash or unexpected load event.