Engineered for precision and performance, the Dia Edge Mitsubishi CNMG120408-GK inserts are high-quality, double-sided turning inserts ideal for roughing to medium finishing applications. These inserts are specifically designed for steel machining, including low to medium carbon steels, alloy steels, and mild structural steels.

The GK chipbreaker geometry offers excellent control of medium to long chips, reducing built-up edge and promoting stable cutting at a wide range of speeds and feeds. Whether you’re operating under dry or wet conditions, these inserts deliver consistent surface finishes with excellent edge wear resistance.

Key Features:

Insert Style: CNMG120408 – 80° diamond, double-sided with 4 cutting edges
Chipbreaker: GK – optimized for general-purpose turning of steel
Material Compatibility: Best suited for steel; can also perform well on cast steel and certain stainless steels
Applications: Roughing to semi-finishing
Finish: Delivers a clean, smooth surface with predictable chip evacuation
Coating: High-performance PVD/CVD coating (depending on grade) for extended tool life

Ideal for CNC lathes or manual turning machines, these inserts strike the perfect balance between durability, chip control, and surface quality — making them a reliable choice for production environments and job shops alike.

Mitsubishi Carbide

Dia Edge Mitsubishi CNMG120408-GK

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