Walter-prototyp 6579280 Corner Radius End Mill 3/4 in

Product Description

The WALTER-PROTOTYP 6579280 is a solid carbide corner radius end mill designed for demanding metal removal in ferrous and exotic alloy applications. The 3/4-inch diameter cutter features a 1/8-inch (0.1250-inch) corner radius and four flutes with a high-helix spiral geometry, promoting efficient chip evacuation and smooth surface finishes. A physical vapor deposition (PVD) TiAlN coating adds thermal and wear resistance at the cutting edge, extending tool life in high-temperature machining environments. This is a single-end, centercutting tool suited for slotting, profiling, and ramping cuts across both roughing and finishing operations.

This end mill is built for CNC machining centers and manual mills where rigidity and tool life matter. It targets steel, stainless steel, cast iron, superalloys, and titanium workpieces, covering ISO material codes P, M, K, and S. The 3/4-inch straight-cylindrical shank mounts directly into standard toolholders. With an extended reach and 1-1/2-inch length of cut, it handles moderate-depth pockets and contoured features without requiring a specialty holder. Machinists and toolroom professionals working in job shops, production floors, and maintenance environments will find this tool appropriate for a wide range of part geometries in hard and abrasion-resistant materials.

Key Features

• 3/4-inch diameter with 1/8-inch corner radius for edge-blending and radius-floor pockets
• Four-flute, high-helix spiral geometry supports both roughing and finishing in a single tool
• TiAlN PVD coating for elevated heat and wear resistance in ferrous and superalloy cuts
• Centercutting design enables plunge entry without a pre-drilled start hole
• Extended reach with 1.969-inch reach length accommodates moderate-depth features
• Right-hand cutting and right-hand flute direction; fits standard right-hand toolholders
• Mill diameter tolerance h9 and shank diameter tolerance h5 for consistent runout in precision setups

Compatibility

Designed for use with standard straight-bore toolholders accepting a 3/4-inch cylindrical shank. Suitable for CNC machining centers and milling machines running steel, stainless steel, cast iron, superalloys, and titanium workpieces. Part of the WALTER-PROTOTYP MC326 series.

Installation Notes

Installation should be performed by a qualified machinist or toolroom professional. Secure the shank fully within the toolholder to the manufacturer-recommended gauge-line depth before tightening. Confirm runout with a dial indicator before starting a cut, especially in high-speed or tight-tolerance operations. Coolant-through is not supported on this tool; use flood or mist coolant externally where applicable, following your machine tool and shop safety procedures.