IVY Classic single-edge razor blades are made in the USA of high-carbon steel for long-life and durability. Their precision-honed sharpened edge is designed for clean accurate cutting and scraping smooth surfaces. The blades are constructed of high-carbon steel and steel-backed for extra rigidity. Each blade is individually wrapped for safety. The blades fit Ivy Classic razor blade Scraper (11156) and all single-edge razor blade tools. The blades are ideal for scraping and cleaning paint and labels from glass, tile and metal. Blades are .009" Thick. Ivy Classic Industries is dedicated to producing a comprehensive, quality line of power tool accessories and hand tools.