Mochini oa rona oa ho Kopanya Mohoma o entsoe ka aparatus ea phetisetso, silinda e otlolohileng, colter flying cutter; tlas'a ketso ea colter, thepa e tsamaisa moferefere o pota-potileng lerako la cylinder, 'me lisebelisoa li lahleloa' me li fafatsoa ke sehahi se fofang se potolohang ka lebelo le phahameng ha se phalla ka sehahi se fofang, kahoo thepa e kopantsoe ka mokhoa o ts'oanang ka nako e khutšoanyane.