Kwerekana ibicuruzwa:
Inguni y'icyuma ni icyuma cya L, ubusanzwe gikozwe mu cyuma gishyushye cyangwa gikonje.Uburebure nubunini bwicyuma cyinguni birashobora gutegurwa nkuko bikenewe.
Igikorwa cyo gukora ibyuma bya Angle muri rusange harimo kuzunguruka no gutunganya imbeho.Icyuma gishyushye Cyicyuma ni ugushyushya bilet ku bushyuhe runaka unyuze mumuhanda wikurikiranya nyuma yo gukanda, umusaruro urakomeye, ariko igiciro kiri hejuru.Gutunganya imbeho ikonje binyuze mumashini kugirango ikore icyapa kibanziriza icyuma, igiciro ni gito ariko umusaruro urakabije.