These blades are thinner then the standard blades. Are excellent for tape editing. It is .009 high-carbon surgical steel, good for scraping, trimming and cutting of paper, plastic, board, wallpaper and glass. This blade fits all standard scrapers and other tools that use single edge razor blades. By clicking the order button below you will be able to specify quantity. Availability: Usually ships the next business day. Single Edge 100 razor blades for tape editing RB100$5.98 For more info.E-mail us at: TapeCenter@Gmail.com