Iscar 3398992 Square End Mill 3/4 in 3 Flute Solid Carbide

Product Description

The ISCAR 3398992 is a solid carbide square end mill designed for precision milling operations in metalworking and machining applications. It carries a 3/4-inch cutting diameter and a 1-1/2-inch length of cut, with a 6-inch overall length and a matching 3/4-inch shank diameter. The 45-degree helix angle and three-flute configuration promote efficient chip evacuation and surface finish quality. A diamond-like carbon (DLC) coating reduces friction and extends tool life in demanding cutting conditions. The submicron carbide grade provides the edge toughness and wear resistance required for high-performance milling. Variable index geometry helps reduce chatter during cuts.

This end mill is suited for ferrous and non-ferrous milling in CNC machining centers and manual milling machines. The single-end, center-cutting design allows plunge entry as well as peripheral and slot milling. The right-hand cutting and right-hand flute direction make it compatible with standard spindle configurations. It is typically installed by machinists and CNC operators in job shop, toolroom, and production environments where tight tolerances and clean finishes are required.

Key Features

• 3/4-inch cutting diameter with 1-1/2-inch length of cut for versatile material removal
• Solid submicron carbide construction for edge retention and wear resistance
• DLC coating reduces friction and heat buildup during cutting
• 45-degree helix angle promotes smooth chip flow and reduced cutting forces
• Variable index flute spacing minimizes chatter and vibration
• Center-cutting capable for plunge entry and slot milling

Compatibility

Designed as a standard 3/4-inch shank end mill for use in CNC machining centers and milling machines equipped with compatible collet or end mill holder systems accepting a 3/4-inch shank diameter.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the machine spindle is fully stopped and locked out before changing tooling. Seat the shank fully into the collet or tool holder to the recommended gauge depth and torque the retention mechanism per the machine and holder specifications. Verify runout with a dial indicator before beginning cuts, as excessive runout accelerates wear and reduces surface finish quality.