Iscar 5621478 Corner Radius Milling Tip 6 Flute IC908

Product Description

The ISCAR 5621478 is a corner radius end replaceable milling tip from the Multimaster MM EC-6 series, designed for modular end mill systems where the cutting head is swapped out independently of the shank. Manufactured from sub-micrograin carbide with an IC908 grade and a TiAlN coating applied via PVD process, this tip delivers wear resistance and thermal stability across a wide range of workpiece materials. It features 6 flutes, a 0.375-inch cutting width, a 0.030-inch corner radius, and a maximum depth of cut of 0.275 inches. The 30-degree helix angle and 90-degree lead angle suit general-purpose and finish milling applications. Installation is right-hand orientation only.

This milling tip is suited for machining steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and hard materials. It fits into compatible Multimaster MM EC-6 style modular holders and is appropriate for CNC machining centers in job shop, production, and aerospace environments where quick tip changes reduce downtime. The 0.512-inch functional length and overall length make it a compact choice for shoulder and slot milling in tight setups.

Key Features

• Sub-micrograin carbide construction with IC908 grade for toughness and edge retention
• TiAlN coating via PVD process for elevated heat and oxidation resistance
• 6-flute geometry increases feed rate potential and surface finish quality
• 0.030-inch corner radius reduces edge chipping and extends tool life at corners
• 30-degree helix angle promotes smooth chip evacuation across multiple workpiece materials
• Modular replaceable tip design reduces tooling cost versus full solid end mill replacement

Compatibility

Designed as an OEM-style replaceable tip for Multimaster MM EC-6 series modular milling systems. Compatible holder acceptance is based on the MM EC.375A27R030-6T06 tip interface designation. Verify holder compatibility against the MM EC-6 interface specification before ordering.

Installation Notes

This tip is installed by a machinist or tooling technician familiar with modular milling systems. Power down and lock out the spindle before removing or installing any replaceable tip. Use the appropriate torque wrench and interface tool specified by the holder manufacturer — do not overtighten by hand. Confirm seating and runout with a dial indicator before beginning a cut.