The casing scraper is used to remove foreign matter on the inside casing wall in order to provide a smooth clean casing I.D. for running and setting packers and other sub- surface equipment. The casing scraper features a one piece body with full 360° casing I.D. coverage provided by six spring loaded scraper blades. The design also features a large bypass area around and between the blades for ease of circulating. Each blade is secured in its own individual pocket and ensures that all thrust and rotational forces are absorbed directly by the one piece body. The casing scraper features leaf type Incoloy springs behind each self-sharpening blade, providing maximum usage before repairs or replacement is necessary.