Attributes:* Shank Diameter: 2.35mm / 0.09-inch* Blade Length: 21mm / 0.8--inch* Total Length: 49.5mm / 1.9-inch* Material: High-Speed SteelWhat Is Included:* 4 pieces x electric drill bitsApplications & Features:--- Metal drill bits are essential for professional carpenters and construction workers. Suitable for drilling holes in metal, wood, and plastic.--- The surface is titanium plated to improve its corrosion resistance and not easy to rust.--- Suitable for electric drills, hand drills, and impact drills.--- The drill bit is made of high-speed steel and has been quenched to make it hard and wear-resistant and not easy to break.--- Sharp cutting edges allow for smooth cuts without burrs--- Spiral chip removal design, chip removal is smoother, more efficient, and more labor-saving.Useful Tips:Compatible models of twist drill bits include electric hand drills and bench drills. Choosing the correct lubricant is beneficial for cutting or cooling.
