The OLFA® 9 mm precision silver snap-off blade is manufactured from high quality Japanese tool steel. These professional blades deliver durable, lasting performance. Each blade is precision honed for unparalleled sharpness and edge retention. With 13 cutting edges per blade, a fresh sharp edge is always available quick and easy. Use OLFA® 9 mm precision silver snap-off blades to deliver accuracy and reliability when cutting cardboard, wallpaper, vinyl, paper, foam board, caulking, molding and more.