Tungsten Carbide Zund Cutter Blade Z21 ferrum commune est in systematis secantis zund, etiam ad 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 etc aliae notae.