Tha Tungsten Carbide Zund Cutter Blade Z21 na lann cumanta anns an t-siostam gearraidh zund, cuideachd freagarrach airson 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 msaa brand eile.