STANLEY FATMAX Heavy-Duty Utility Knife Blade features carbide edged blades that provide the longest-lasting performance on any jobsite. These blades are designed with improved durability and wear resistance, lasting up to five times longer than competitive utility blades. The carbide edge ensures exceptional cutting strength while allowing the rest of the blade to remain flexible for versatile use. Each pack contains five blades, each measuring 2-1/2 inches in length, with a 2-point heavy-duty design and two holding notches for secure mounting. Crafted from carbide steel, these blades are built to handle tough cutting tasks with ease, making them an essential tool for professionals and DIY enthusiasts alike. Model Number: 11-800