All data is manually measured and may contain errors. Sandblasted chrome surface treatment provides rust and wear resistance, ensuring durability. The precision manufacturing process includes precise milling and polishing for standard dimensions and tight bolt fit. The clear model identification on the wrench allows for easy and quick use. The plastic case provides secure storage and easy portability, preventing loss and ensuring overall durability. This 7-piece set covers a wide range of applications from 1.5mm to 6mm, making it versatile and practical for various repair tasks.