A na-esi na nchara ígwè (D2, A1, A8, SKD-11), M2 HSS, M4 HSS, igwe anaghị agba nchara dị iche iche, na ọkwa tungsten carbide. Biko lelee ngwaahịa anyị maka ozi ndị ọzọ.
Akụkụ ọ bụla nke agụba anyị na-ere na-emesi anyị obi ike na ị ga-enwe mmasị na arụmọrụ ngwaahịa anyị. Ngwa ọgbara ọhụrụ na-ehulata, ịkpụ na egweri ihe na-emepụta agụba kwụ ọtọ na okirikiri nwere scalloped, serrated, perfed, beveled and teethed n'ọnụ ka dabara ngwa gị.