5 Pcs Blue Nano Coated Tungsten Steel 4 Flute End Milling Cutter, HRC65°, for Stainless Steel and Die Steel, 5 Sizes

5 Pcs Blue Nano Coated Tungsten Steel 4 Flute End Milling Cutter, HRC65°, for Stainless Steel and Die Steel, 5 Sizes

• High Hardness Construction: Made from tungsten steel with HRC65° hardness and a blue nano coating, these 4 flute end mills provide strong wear resistance and durability when machining stainless steel, die steel, and heat-treated steel in fine milling operations.
• Precision Geometry: Features a 45° spiral angle and ultra-fine 0.2μm coating thickness for efficient chip evacuation and clean, accurate cuts—ideal for applications requiring tight tolerances and smooth surface finishes on CNC machines.
• CNC-Compatible Design: Engineered for use in CNC machining centers and professional-grade CNC machines, supporting engineers, machinists, and hobbyists in producing high-precision metal components reliably.
• Blue Nano Coating: Reduces friction and heat generation during cutting, helping extend tool life and retain edge sharpness longer than uncoated or standard-coated cutters—especially during prolonged machining of hard or abrasive materials.
• 5-Size Set: Includes five end mills with diameters of 1.0mm, 1.5mm, 2.0mm, 2.5mm, and 3.0mm—all with 4mm shank diameter and 50mm overall length—for versatility across fine-detail milling tasks.