High quality: Our precision screwdriver kit is made of high-quality steel with a hardened carbon steel shaft and black oxide coating for durability and corrosion resistance. The mini screwdriver set is slim and ideal for small screw applications. Precision design: This 5-piece screwdriver set is designed for precision machining. The rotating handle cover allows easy hand operation. Easy to use: Features a standard flat-head screwdriver with a rotary head for simple and practical use. Color-coded handles allow quick identification of sizes. Different sizes: Includes 1.6 mm and 2.0 mm Y-type screwdrivers. Made from chromium vanadium alloy steel. Applicable industries: Suitable for use in watches, jewelry, eyewear, and digital electronics. Two functions: The 1.6 mm tip is ideal for watch crown repair, while the 2.0 mm screwdriver is designed for watch strap screws. Specification: Material: Chromium vanadium alloy steel Size: 10.3 x 0.94 cm / 4 x 0.37 inch Package includes: 1 piece triangular watch case screwdriver