Designed for Precision The OLFA 9mm 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 9mm Precision Silver Snap-off Blades to deliver accuracy and reliability when cutting cardboard, wallpaper, vinyl, paper, foam board, caulking, molding, and more. High quality, long lasting Japanese steel for durable professional performance. Snap quick and easy for a new sharp cutting edge every time. More cutting edges per blade than traditional 2-sided blades. 13 cutting edges/blade. 10 blades per pack. Fits 9 mm utility knives