Iscar 5621475 Corner Radius Milling Tip 0.375 in 4 Flute

Product Description

The ISCAR 5621475 is a corner radius end replaceable milling tip from the Multimaster MM EC-4 series, designed for modular milling tool systems used in metal removal applications. Built from sub-micrograin carbide in manufacturer grade IC908 with a PVD-applied TiAlN coating, this tip delivers wear resistance and thermal stability across a broad range of workpiece materials. It features a 0.375-inch cutting width, a 0.015-inch corner radius, a 30-degree helix angle, and a 90-degree lead angle. Maximum depth of cut is 0.275 inches, and functional length is 0.512 inches. Installation is performed by qualified machinists or tooling technicians working with compatible Multimaster-style holders.

This milling tip is suited for both roughing and finishing passes in milling operations on steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and hard materials. It is a right-hand cut tool with four flutes and no chipbreaker, making it appropriate for consistent chip evacuation in moderate-to-high feed rate scenarios. Typical applications include face milling, shoulder milling, and profile milling in job shop and production machining environments.

Key Features

• Sub-micrograin carbide construction in IC908 grade for edge toughness and wear resistance
• PVD TiAlN coating for thermal protection and extended tool life in ferrous and hard material cutting
• 0.375-inch cutting width with 0.015-inch corner radius for controlled edge geometry
• 4-flute right-hand configuration with 30-degree helix angle for smooth chip flow
• Maximum depth of cut of 0.275 inches with a functional length of 0.512 inches
• Compatible with steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and hard materials (ISO material codes P, M, K, N, S, H)

Compatibility

Designed for use with Multimaster MM EC-4 series modular milling holders accepting a 0.375-inch insert size designation .375A27R015. Conforms to ANSI standards.

Installation Notes

Installation and removal of replaceable milling tips should be performed by a qualified machinist or tooling technician using the appropriate torque wrench or key specified by the holder manufacturer. Ensure the machine spindle is fully stopped and locked out before changing tips. Inspect the seating face and locking mechanism of the holder for debris or wear before installing a new tip. Follow the holder manufacturer's engagement and torque procedures to ensure proper tip retention and runout performance.