Iscar 3398522 Square End Mill 1/4 in 5 Flute Carbide

Product Description

The ISCAR 3398522 is a solid carbide square end mill designed for precision milling in demanding metalworking applications. With a 1/4 inch cutting diameter, 1 inch length of cut, and 5 flutes, this tool delivers high material removal rates and smooth surface finishes. The 38-degree helix angle and variable index flute geometry reduce chatter and vibration during aggressive cuts. A TiAlCN coating adds thermal and wear resistance, extending tool life in hardened steels, stainless, and high-temp alloys. This is a single-end, right-hand cutting tool intended for use by machinists and tool-and-die professionals on CNC machining centers and manual mills.

This end mill is suited for slotting, profiling, and peripheral milling operations in ferrous and non-ferrous materials. The submicron carbide grade provides the toughness and edge retention needed for high-speed and high-feed strategies. With a 1/4 inch shank diameter and 3 inch overall length, it fits standard ER and straight-bore collet systems used in vertical and horizontal machining centers. Center-cutting capability allows direct plunge entry without a pre-drilled pilot hole, making it versatile across a range of roughing and finishing operations.

Key Features

• 5-flute, variable index geometry reduces harmonic vibration and chatter during cutting
• 38-degree right-hand spiral helix for efficient chip evacuation
• TiAlCN coating provides high-temperature wear resistance and extended tool life
• Submicron solid carbide grade for superior edge retention and toughness
• Center-cutting design allows direct plunge milling without pre-drilling
• Single-end construction with 1/4 inch shank for standard collet compatibility

Compatibility

Designed as an OEM-style replacement end mill compatible with standard 1/4 inch collet and toolholder systems on CNC and manual milling machines.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Ensure the spindle is fully powered down and locked out before changing tooling. Seat the shank fully in the collet to the recommended minimum engagement depth per the toolholder manufacturer's specifications, and torque the collet nut according to the toolholder manufacturer's guidelines. Inspect the tool for chips or edge damage before each use, and never exceed the manufacturer's recommended speeds and feeds for the material and coating type.