Diameter : φ15-120mm
Gushyira mu bikorwa: Ikoreshwa cyane mu birombe bitandukanye, inganda za sima, amashanyarazi n’inganda zikora imiti.
Imipira yahimbwe ya Chromium ikoreshwa cyane mugutegura ifu, hamwe nifu ya ultra-nziza ya sima, amabuye yicyuma hamwe namakara.Zikoreshwa mumashanyarazi yubushyuhe, ubwubatsi bwa chimique, amarangi yubutaka, inganda zoroheje, gukora impapuro ninganda zikoreshwa mubikoresho bya magneti, usibye nibindi.Imipira yo gusya yahimbwe ifite ubukana buhebuje, irinde imiterere yizunguruka, kwambara gake no kurira, nigipimo gito cyo guhonyora.Ubukomere bwibicuruzwa byacu bya chromium ndende ni 56-62 HRC, ubukana bwumupira wa chromium ugera kuri 47-55 HRC, mugihe ubukana bwumupira muto wa chromium bugera kuri 45-52 HRC, hamwe na mm 15 nkibisanzwe na mm 120 nka diameter ntarengwa.Ikoreshwa cyane munganda zitandukanye zumye.