High carbon steel construction provides sufficient bending strength and wear resistance for high work efficiency. Nano blue coating enhances the cutting edge with improved lubrication, high nano hardness, and heat resistance. Made from ultra-fine grained carbide for excellent milling and cutting performance. Features high hardness, high strength, high wear resistance, and high bending strength. Offers smooth chip removal, stable operation, and clean, precise cuts. Sharp cutting edge suitable for milling, piercing, and flat edge applications. Ideal for use on PCB, SMT, CNC, molds, plastic fiber, carbon fiber, hardwood, and circuit boards. Suitable for 3D embossing, cutting, engraving, slotting, and milling. Cutting edge diameter: 0.8, 1.0, 1.2, 1.4, 1.6, 1.8, 2.0, 2.2, 2.4, 3.175mm. Total 10 pieces. Shipment quantity: 1 set. Package includes only the items listed. Size: diameter 0.8–3.175mm, length 38mm. (Note: Size measured manually, slight variation of 1–2cm may occur.) Color as shown in picture. (Note: Actual color may vary slightly due to monitor and lighting differences.)