For rubber, linoleum and plastic materials. 4-1/2″x11″ carbon steel blade, hardened and tempered to hold it’s shape. MAXXGRIP PRO^® Soft-grip handle is comfortable and easy to clean. No grooves or pinholes in handle to catch adhesive. Cast aluminum handle spine is riveted to blade for durability. 1/16″x1/16″x1/16″ square notch.