Rockwell RW9113 Sonicrafter Scraper Blade - 2 Pack (Total of 4 Blades). The RW8921 Sonicrafter Rigid scraper blade is the perfect accessory to remove old vinyl, wood or other floor coverings. Use it to scrape paint and adhesives left behind from floor coverings. The rigid scraper blade is perfect to use on refinishing projects to remove coatings, residues, and layers of paint or caulk. It will also cut carpet.