The Milwaukee® STARLOCK™ Multi-Tool Blades are designed for quick blade changes for both OIS Multi-Tool and STARLOCK™ Multi-Tools. The 3-in-1 Multi-Cutter Scraper Blade is made from solid stainless steel with three different sharpened edges to bring you a 3-in-1 multi-cutting blade. This blade has been designed to have a special hooked design for easy push and pull cutting, along with a front know cutting edge for cutting and scraping. This blade is Ideal for cutting through carpets, roofing paper, asphalt roofing shingles, and cardboard more efficiently than a standard pull-through blade.