Tsamba lolozera ndi tsamba lomwe limamangirira choyikapo kale cha polygonal chokhala ndi m'mphepete zingapo pazida zomangira.Pamene kudula kumakhala kosamveka panthawi yogwiritsira ntchito, mumangofunika kumasula kugwedeza kwa tsamba ndiyeno kuloza kapena kusintha tsambalo kuti m'mphepete mwatsopano ulowe m'malo ogwirira ntchito, ndiyeno ukhoza kupitiriza kugwiritsidwa ntchito pambuyo potsekedwa.Chifukwa cha kudulidwa kwakukulu komanso nthawi yochepa yothandiza ya chida cholozera, ntchito yogwira ntchito bwino, ndipo thupi locheka la chida cholozera lingagwiritsidwe ntchito, zomwe zimapulumutsa zitsulo ndi ndalama zopangira, kotero kuti chuma chake ndi chabwino.Kukula kwa masamba indexable kudula kwalimbikitsa kwambiri kupita patsogolo kwa luso kudula chida, ndipo pa nthawi yomweyo, mwapadera ndi standardized kupanga indexable kudula masamba kwalimbikitsa chitukuko cha kupanga ndondomeko kudula masamba.