Fantastic quality 43mm x 22mm ZIRCONIA CERAMIC 3-hole Slitter Blades Blades are .3mm thick, also known as “3-hole slitters” Double edged Used in film, foil, paper slitting, and other precision applications. Ceramic slitter blades are designed for high performance industrial applications. Also available in the slotted style to meet your slitting and converting needs. The durability and performance of Zirconia ceramic is unmatched, they will last 20-30 times longer than other types of blades and are extremely hard, sharp and wear resistant. Please note this is for one ceramic blade.