Umuvuduko mwinshi w'icyuma milimetero irapfa. Mugukata insinga zo hanze. Guhindura ibice byemerera gupfa gushyirwaho mubyiciro bitandukanye bikwiye. Irashobora gukoreshwa mugukata insanganyamatsiko nshya cyangwa guhanagura insanganyamatsiko zihari.