STANLEY 11-700A FATMAX BLADES WITH DISPENSER 100 PACK THE PRECISION GRINDING OF THE CUTTING BEVEL ANGLES AND THE IMPROVED HONING ON CUTTING EDGE ANGLES MAKE THIS BLADE - UP TO +35 SHARPER. SPECIALLY HEAT-TREATED FOR A MORE FLEXIBLE BLADE - UP TO +20 STRONGER. INDUCTION HARDENED EDGE - UP TO +75 LONGER CUTTING LIFE. VERSATILE CUTTING APPLICATIONS - DRYWALL CARPET ROOFING FELT HOUSE WRAP TAR PAPER INSULATION. BASED ON AVERAGE VALUES COMPARED WITH STANLEY 1992 BLADES. VERSATILE CUTTING CUTS DRYWALL CARPET ROOFING FELT TYVEK INSULATION AND SIMILAR MATERIALS. MUST BE 18 YEARS OR OLDER TO PURCHASE THIS PRODUCT