Makina onyamula otsika mtengowa ndi odzivulira okha ndi kupotoza waya wamagetsi. Waya yogwira ntchito m'mimba mwake ndi 1-5mm. Kutalika kwake ndi 5-30mm.
Makinawa ndi mtundu watsopano wamakina opukutira waya, poyerekeza ndi makina osokera waya wamba, pali zabwino izi:
1.Kugwiritsa ntchito magetsi osinthira phazi lamagetsi kuti athe kuthana ndi kuwongolera kwa phazi lolemera, kumachepetsa mphamvu ya ogwira ntchito, ndikosavuta kugwira ntchito, kumathandizira kwambiri magwiridwe antchito.
2.Chidachi chimapangidwa bwino kuti chikhale chopeta mpeni wamba, chomwe chimapulumutsa mtengo wam'mbuyo wa zida zapamwamba komanso kusintha masamba ndikosavuta.
3.Kugwiritsa ntchito mphamvu kwa makinawo kumakhala kotsika kwambiri kuposa makina ovundukula wamba.
4. Makina a makinawo ndi pakamwa ngati v, kupotoza kwa waya kumakhala kokongola kwambiri, sikuvulaza waya wamkuwa, katswiri wa waya wamagetsi a rabara.
