General description This 145-Piece Screwdriver Set is a high-quality multifunctional tool designed for portable computer, notebook, and phone maintenance. It includes a comprehensive range of tools to meet all your repair needs, from small items like glasses and watches to larger devices such as cameras and mobile phones. Technical specifications Quantity: 145 pieces Material: Chrome vanadium steel Batch head size: 4x28MM Batch head length: 45mm Measurement allowed error: +/- 1-3cm Compatibility and accessories Includes 1 handle, 2 starting rods, 5 starting blades, 1 forceps, 1 extension rod, 1 suction cup, built-in magnetizer, and a built-in parts box. Installation The built-in extension rod allows for telescopic storage, making it convenient to use in narrow or special spaces. Usage Ideal for disassembling and repairing various devices, providing a comfortable grip with its three-dimensional anti-slip texture. Designed to maintain a clear field of vision during operations,