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 kudula kwapamwamba komanso nthawi yochepa yothandiza ya chida cholozera, ntchito yogwira ntchito bwino, ndipo thupi locheka la chida cholozera lingagwiritsidwe ntchito, zomwe zimapulumutsa chitsulo ndi kupanga ndalama, 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 masamba indexable kudula kwalimbikitsa chitukuko cha kupanga ndondomeko kudula masamba.