Cobalt Twist Drill Bit 4Mm 7.87" M35 High-Speed Steel Metal Drill Bits Gold

Attributes:* Twist Drill Bits Diameter: 4mm / 0.16-inch* Shank Diameter: 4mm / 0.16-inch,* Blade Length: 140mm / 5.51-inch* Total Length: 200mm / 7.87-inch* Material: M35 High-Speed SteelWhat Is Included:* 1 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.--- Suitable for electric drills, hand drills, and impact drills.--- The drill bit is made of cobalt-containing high-speed steel, which is harder more wear-resistant, and not easy to break.--- Spiral chip removal design makes chip removal smoother, more efficient, and more labor-saving.--- The 135-degree angle makes cutting sharper and drilling faster.--- Sharp cutting edges allow for smooth cuts without burrs.Useful Tips:--- The rotation speed should not be too high during operation, and the drill handle must be clamped during installation to prevent shaking and slipping.