Features High Wear Resistance: Engineered from high-hardness tungsten steel, these bits offer exceptional durability, ensuring they withstand rigorous usage without compromising performance Versatile Application: Perfectly suited for a wide range of materials, including PCB, metal, plastic, and wood, making them ideal for your CNC and engraving projects Superior Milling Performance: Designed for efficient cutting, these bits enhance work productivity, allowing for precision and smooth finishes in every application Enhanced Comfort with Heat Treatment: The high-temperature quenching process improves the hardness of the bits, providing a comfortable grip and reducing user fatigue during extended use Precision Pointed Cutting Edge: Each twist drill milling cutter features a sharp cutting edge that produces clean, burr-free results, ensuring high-quality finishes every time Features: 1、High Wear Resistance: High hardn, high wear resistance, high strength, with sufficient bending strength and wear resistance. 2、Application: Used for engraving PCB, CNC, circuit board, metal, plastic, wood, SMT, glass fiber, carbon fiber board, etc. 3、Good Milling Performance: Has good milling and cutting performance to ensure high work efficiency. 4、High Temperature Quenching: High temperature quenching heat treatment strengthens the overall hardn and makes more comfortable to use. 5、Pointed Cutting Edge: This is a straight shank twist drill milling cutter with pointed cutting edge, neat and non burrs. Specification: Item Type: Straight Shank Twist Drill Material: Tungsten Steel Hole Diameter: Approx. 11mm / 0.43in Package List: 10 x Straight Shank Twist Drill Bit Package List 10 x Straight Shank Twist Drill Bit