Hwaynct 0.4mm HRC60 Micro Flat End Mill – Engineered for Professional Precision The Hwaynct 0.4mm 2-Flute Micro Carbide Flat End Mill is built for professional CNC machining tasks that demand extreme precision. Its 0.4mm cutting tip allows for delicate detail work, including PCB routing, engraving, mold finishing, and micro component manufacturing. Crafted from high-quality micro-grain carbide and hardened to HRC60, the tool offers exceptional strength, wear resistance, and durability. The 2-flute geometry enhances chip evacuation, ensuring efficient cutting and cleaner surface finishes even at high feed rates. With a rigid 4mm shank and strict dimensional tolerance of ±0.01mm, this end mill provides superior stability and accuracy, making it a reliable choice for industrial professionals and advanced makers alike.(3pcs) Cutting Diameter: 0.4mm /Shank Diameter : 4mm /Flute length : 0.8 mm /overall length : 50mm /HRC60 2Flutes /Material: Tungsten Carbide Ultra-Precise Micro Machining – 0.4mm cutting diameter, perfect for PCB milling, micro engraving, fine mold finishing, and prototype fabrication. Premium Micro Carbide Material – Constructed from ultra-fine grain tungsten carbide hardened to HRC60, offering exceptional wear resistance and long-lasting performance. Optimized 2-Flute Geometry – Ensures smoother surface finish, efficient chip removal, and minimized clogging during high-speed CNC milling. Rigid 4mm Shank Stability – Precision-ground shank provides firm clamping and vibration-free cutting, reducing the risk of tool breakage. Durable ALTIN Coating – Bronze-style titanium nitride layer applied, enhancing hardness, heat resistance, and tool longevity for demanding applications. UPC 762849855677 Model A17-2-H60-D4-D40-50-Q3 Size Name Cutting diameter 0.4mm Brand Name Hwaynct Item Weight 25 Grams Part Number A17-2-H60-D4-D40-50-Q3 Manufacturer Hwaynct Material Type Tungsten Carbide Cutting Length 0.8 Millimeters Cutting Diameter 0.4 Millimeters Number of Flutes 2 Included Components End Mill box Number of Cutting Edges 2