Ubuziranenge bw'ubwikorezi burimo ubuziranenge n'ubuziranenge buzenguruka, ubuziranenge bw'ingano ni umushinga ushyirwa ku mishavi, urimo umurambararo w'imbere, umurambararo wo hanze, ubugari, ubushobozi bwo kwihanganira ingano ya chamfer cyangwa agaciro kemewe. Ubuziranenge bwa jeometri burimo ubusumbane bw'umurambararo, ubusumbane bw'umurambararo w'imbere, ubusumbane bw'umurambararo wo hanze, ubusumbane bw'umurambararo w'impeta mu ndege imwe. Ubuziranenge bw'ubwikorezi ni Pendulum izenguruka, harimo impeta y'imbere n'impeta y'inyuma n'urujya n'uruza rw'imirongo, uruhande rw'impeta y'imbere n'ubuso bw'inyuma bw'ubuso buhagaze neza. Ubuziranenge bw'ubwikorezi kuva ku rwego rusange rwa 0 kugeza kuri 6, 5, 4 na 2, hepfo hari igereranya ry'imbonerahamwe hagati y'icyiciro cya preeision cya China GB 307 n'ibindi bipimo by'ubuziranenge. Ubuziranenge bw'ubwikorezi bunini ni ubw'icyiciro cya 6, 5, 4 na 2 cy'ibipimo bine. 

Impeta y'inyuma 11, impeta y'imbere 12, n'umupira 13 bigize ibice biyigize ni 0.95% cyangwa irenga na karuboni 1.10% cyangwa munsi yayo, 0.05% cyangwa irenga kandi munsi yayo na 0.3% silicon, 0.10% cyangwa irenga na 0.50% 11 A by'inzira z'inyuma z'uruziga na 12 A by'inzira z'inyuma z'uruziga ari byo ubuso bugizwe n'icyuma kigizwe na manganese ikurikira, 1.30% cyangwa irenga, na 2.00% cyangwa munsi yayo, kandi kigizwe n'icyuma kigizwe n'icyuma gisigaye n'umwanda, hamwe n'ibindi bice. Kandi igipimo mpuzandengo cya azote mu turere tw’ubuso 11B, 12B, na 13B aritwo turere turi mu bujyakuzimu bwa 20 μm uvuye ku buso buzunguruka bwa 13A ni 0.2% by’uburemere cyangwa birenga na 0.7% by’uburemere cyangwa birenga, naho mu turere tw’ubuso 11B, 12B, 13B, karubide 5 cyangwa zirenga zifite umurambararo wa mikorometero 0.5 cyangwa munsi yabyo kuri mikorometero 100.