This is a high-quality Storm Conventional Rotor Inc Disc Brake Micrometer manufactured in China. It is an essential tool for any mechanic who wants to ensure perfect brake rotor surface flatness. The micrometer is designed to measure the thickness of the rotor, and it provides precise readings that are crucial for proper brake performance. With this tool, you can easily check the flatness of the rotor, which will help you achieve optimal brake feel and reduce brake fade. If you're looking for a reliable and accurate tool for measuring brake rotors, the Storm Conventional Rotor Inc Disc Brake Micrometer is the perfect choice.