Designed to perform to the highest standards, rigorously tested for durability and performance, and crafted with fine craftsmanship for a smooth finish. In order to ensure the drill bit is strong and durable, vacuum secondary tempering and heat treatment are added to the CNC precision manufacturing process. This makes it a reliable option for professional and self-service applications. This screwdriver head is made of high-quality chromium vanadium steel, which is extremely tough, corrosion-resistant, and wear-resistant.In addition to its traditional high-speed steel design, the screwdriver bits are electroplated to ensure optimal performance and longevity. These qualities make it an excellent choice for mechanical applications. With a black phosphate coating, corrosion can be prevented, and the rugged design can withstand all kinds of weather conditions. Magnetic adsorption screws are incorporated into the body and the whole body is treated with strong magnetism.In addition to better drilling accuracy and efficiency, precision manufactured drill bits have a tighter fit and less cam stripping. A convenient storage box and sturdy storage box are included with each tool for safe and secure storage. Each piece of equipment must be stored exactly where it should be during transportation. Simple storage options make it easy to find the right accessories, saving you time and effort. As a result of high-temperature quenching heat treatment, the overall hardness has been strengthened, and it feels more comfortable.