The RB-009 is a traditional Single-Edge Razor Replacement Blade, These ultra-sharp blades fit many tools and are universally used for scraping, cutting and trimming jobs, It is used in both PHC scrapers, Handy Cutters and the HH-700 String and Band Cutter, Comes packaged in a Clamshell of 100 Blades Features, Fits many cutters, knives and scrapers, Long lasting, Ultra sharp, The blade is .009" in thickness and sharpened to precision