Professional 24-in-1 precision screwdriver set is ideal for small-scale jobs like computer or electronics repair. The screwdriver set includes 24cs magnetic bits. It’s a high-quality all-in-one tool. The screwdriver repair tool kit are made of high-quality CR-V with high hardness, excellent precision, and good toughness which can reach HRC52 56, It will not damage the devices. All of the size bits undergo rigorous quality control testing to make sure stable and not easily stripped and guarantee long-time use. Anti-rust aluminum alloy screwdriver handle, smooth arc edge for comfortable hand feeling.Sandblasted surface anodes treatment, anti-sweat, and anti-corrosion. You will enjoy it during using. Luxury plastic storage case comes with an Plastic storage box for easy carry and store, great for boyfriend and father gifts. Read Less