Features Versatile Application: Perfect for engraving and milling various materials, including metal, plastic, wood, and glass fiber, ensuring compatibility with a wide range of projects Precise Pointed Cutting Edge: Designed with a sharp cutting edge that provides clean and tidy cuts, eliminating burrs for a professional finish on all your applications Exceptional Durability: Crafted from high-quality tungsten steel, these bits offer superior hardness and wear resistance, delivering reliable performance even under rigorous use Enhanced Comfort in Use: Featuring high-temperature quenching heat treatment, these tools ensure increased overall toughness and a more comfortable handling experience High Efficiency Performance: Engineered for optimal milling and cutting efficiency, these bits significantly boost productivity on your PCB machine and other routing tasks Features: 1、Application: Used for engraving PCB, CNC, circuit board, metal, plastic, wood, SMT, glass fiber, carbon fiber board, etc. 2、Pointed Cutting Edge: Pointed cutting edge, can mill and trim the edge of orifice, the is clean, tidy and of burrs. 3、High Hardn: High hardn, high wear resistance, high strength, with sufficient bending strength and wear resistance. 4、High Temperature Quenching Heat Treatment: High temperature quenching heat treatment, strengthen the overall hardn, more comfortable to use. 5、Good Milling Performance: Has good milling and cutting performance to ensure high work efficiency. Specification: Item Type: Straight Shank Twist Drill Material: Tungsten Steel Hole Diameter: Approx. 6mm / 0.24in Package List: 10 x Straight Shank Twist Drill Bit Package List 10 x Straight Shank Twist Drill Bit