Iscar 5621318 Ball Nose Milling Tip 4 Flute Carbide IC908

Product Description

The ISCAR 5621318 is a ball nose replaceable milling tip from the Multimaster MM EB series, designed for use with compatible modular milling tool holders. Manufactured from sub-micrograin carbide in the IC908 grade with a PVD-applied TiAlN coating, this tip delivers consistent performance in demanding cutting applications. It features four flutes, a 0.375-inch cutting width, a 90-degree lead angle, and a 30-degree helix angle. The functional length is 0.510 inches with a maximum depth of cut of 0.280 inches. Right-hand cut orientation. This tip is installed and replaced by machinists and toolroom technicians as part of a modular end mill assembly.

The 5621318 is suited for milling operations across a wide range of workpiece materials including steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and hard materials. Its ball nose geometry makes it appropriate for profiling, contouring, and 3D surface milling on both roughing and finishing passes. The replaceable tip design reduces tooling cost by allowing the cutting head to be swapped without replacing the full tool body.

Key Features

• IC908 sub-micrograin carbide grade with PVD TiAlN coating for wear resistance across multiple material groups
• Ball nose geometry with 0.375-inch cutting width and 0.190-inch corner radius for profiling and contouring
• Four flutes with 30-degree helix angle for efficient chip evacuation
• Maximum depth of cut of 0.280 inches with 0.510-inch functional length
• Replaceable Multimaster MM EB style tip — no coolant-through, right-hand cut
• Meets ANSI standards; insert size .375A27

Compatibility

Designed as an OEM-style replaceable tip for Multimaster MM EB series modular milling tool holders accepting the .375A27 insert size. Verify holder compatibility by cross-referencing the MM EB.375A27-4T06 tip designation against your holder specification before ordering.

Installation Notes

This replaceable tip is installed by a qualified machinist or toolroom technician following the tool holder manufacturer's assembly procedure. Power down and lock out the spindle before tip removal or installation. Use the appropriate torque wrench and Multimaster assembly key specified by ISCAR for this tip size — do not use substitute tools that could damage the coupling threads. Inspect the holder coupling interface for wear or contamination before seating the new tip.