X-Acto - No. 11 Stainless Steal Blade - 5 Pack - X-Acto No. 11 Blades are the popular general purpose blades. Precision-crafted of the highest quality carbon, and oxidized for rust resistance. Xacto Number 11 Stainless Steal Blades are for delicate, precision cutting, detailing, trimming and stripping of light weight materials such as paper, plastic, balsa, bass wood, and foamboard. Use with Type A handle. Includes 5 Blades.