A Tungsten Carbide Zund Cutter Blade Z21 egy gyakori penge a zund vágórendszerben, alkalmas Aoke-Kasemake, Aristo, Atom, Balacchi, Blackman & White, Comagrav, Combi Pro, DYSS, Delta Diemaking, Esko Kongsberg, Filiz, Humantec, Ibertec, KSM, Lectra, Mimaki, Mécanuméric, SMRE, Samurai, Summa, Torielli, USM, Wild Leica, iEcho stb.