Spring Precision Screwdriver Set: The cylinder roll-up box provides convenient and secure storage for all drill bits and accessories, preventing them from falling out and enabling quick identification. When fully unfolded, it measures 8.3 inches and can be folded in various configurations to suit your needs. High-Quality and Sturdy: This set contains 122 drill bits made of durable alloy steel, delivering strong torque for repairing mobile phones, computers, watches, toys, and electronic products. It includes an aluminum drive handle, a steel double-headed pry bar, and steel tweezers to cover a range of tasks. All-Metal and Anti-Rust: The set uses all-metal parts with frosted coating to prevent rust, ensuring durability and longevity. It also makes a practical gift for family and friends who need these tools. Use scenarios: suitable for electronics repair and maintenance in various contexts, including disassembly and repair of smartphones, tablets, and laptops; watch and toy repair; and electronics assembly or hobby projects. 128 in 1 Precision Screwdriver Set: This set is designed to meet most repair needs for electronic products, including 108 28mm drill bits, 6 40mm drill bits, and various accessories. With a sturdy and high-quality design, you can enjoy using the set for a long time.