Description The DEWALT heavy-duty utility knives blades are heat treated for durability. The blade-grinding geometry is designed to deliver first-cut sharpness. Each pack contains 75 blades. They are constructed to be used with most standard utility knives. WARNING: This product can expose you to chemicals including Lead which is known to the State of California to cause cancer, birth defects or reproductive harm and Butyl Benzyl phthalate (BBP) which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov