The ALLWAY 2-1/2" 4-Edge Wood Scraper Blades feature two edges for fine scraping and two for rough scraping. Use them as replacement blades for the ALLWAY F4, FE4, F42, F42X, and other similar wood scrapers on the market. Made of high carbon steel, these double edge blades resist corrosion thanks to heat treatment. They clear out old paint chips and debris from painted surfaces effectively. These blades excel at aggressive scraping and can be re-sharpened. Sharpen them easily with the ALLWAY Blade File for lasting efficiency during lengthy projects.