Ibi bikoresho bito byumubumbe urimo ibice 3: Ibikoresho byizuba, ibyuma byimibumbe, nibikoresho byimpeta.
Ibikoresho by'impeta:
Ibikoresho: 42CrMo birashoboka
Ukuri: DIN8
Ibikoresho byo mu mubumbe, ibikoresho by'izuba:
Ibikoresho: 34CrNiMo6 + QT
Ibisobanuro: DIN7 yihariye