X-Acto #11 Blade - The X-ACTO #11 Classic Fine Point knife blade is the perfect accessory to a true tool of precision. When elaborate, detailed cuts need to be made, the #11 blade is the one to choose. Because the blade is made with quality sharpened carbon and steel, you can make the most detailed and meticulous cuts knowing that the blade can stand up to the pressure. You won't have to worry about these blades chipping or snapping. 40 Blade Pack.