This type of reamer is made of a single piece of hard alloy and features high hardness, high strength and excellent wear resistance. Machine reaming cutters can achieve high-precision and high-efficiency reaming processing for various metal materials, such as steel, cast iron, and aluminum alloys. Constructed from premium tungsten carbide alloy with a hardness of up to HRC 60°, this drill bit offers exceptional wear resistance and rigidity. It is specifically engineered to drill through hard metals, including stainless steel, cast iron, and hardened steel, without losing its edge. Features a standard 4mm cylindrical shank that fits most rotary tools, drill presses, and electric hand drills. The 50mm total length offers a good balance between reach and control. Perfect for precision metalworking tasks. This twist drill bit is designed for creating micro-diameter holes. Unlike coated or welded bits, this is a solid monolithic drill bit. The one-piece structure ensures superior strength and resistance to breakage, providing high stability during high-speed drilling operations. This design minimizes vibration for cleaner, more precise holes., Manufacturer: SUPKOUMKBG