Nanch Precision Screwdriver Set with Aluminum Alloy Handle and Extension Perfect for Watch DIY Repairs 57-in-1 Built-in Shutters,

55 Magnetic Bits: Made of imported S2 alloy steel, precision CNC processed, the bit hardness reaches about 60, can be used repeatedly. Precision Bit: Adopts a patented six-concave bit, which is more precise and accurate than traditional bits, and cooperates with the bead holder to improve concentricity and stability. Patented design: The handle is sturdy and durable, and the built-in automatic telescopic extension lever can be easily extended by pressing the pop-up button. This allows you to extract deep-hole screws and enjoy high-tech fun. Wide range of uses: The screwdriver is mainly used to repair all small and medium-sized screw-fixing products such as mobile phones, computers, iPhones, Nintendo game consoles, watches, glasses, SLR cameras, fishing reels, etc., satisfying the needs of DIY enthusiasts and professionals. Cool and stylish handle: 100% full metal construction with anti-slip treatment and anodized exterior. The tail cap uses a silent bearing for smooth rotation and quiet operation. Package includes: Affordable weight aluminum handle. 55 precision bits made of alloy S2 steel, HRC 60±2. Internal small magnets for magnetizing the tips when needed. Elegant bit storage case to prevent scattering and loss.