The YW-A modular plastic power tool box is a versatile and well-designed power tool box. It is made of sturdy plastic material with excellent compression and impact resistance, and is designed to meet a variety of household and professional maintenance needs. The design of the box fully considers the classification and storage of tools, and the convenience of easy carrying and use, so that users can easily access tools and keep the work area clean and tidy. The internal space of the YW-A tool box adopts an adjustable partition system. Users can freely adjust the position of the partition as needed to meet the storage needs of different tools. This tool box is also equipped with multiple small storage compartments for storing small accessories such as nails, screws, nuts, washers, etc., to avoid the loss of small objects and keep the interior of the tool box clean.