Dzino lopangidwa ndi diamondi yokhala ndi ma triangular-toothed diamondi, wosanjikiza wa diamondi wa polycrystalline ali ndi malo otsetsereka atatu, chapakati chapamwamba ndi conical pamwamba, wosanjikiza wa diamondi wa polycrystalline uli ndi m'mphepete mwadulidwe, ndipo m'mbali zodulira zimalumikizidwa bwino pakapita nthawi. Poyerekeza ndi chulucho wamba, kapangidwe ka piramidi Mano opangidwa ndi mawonekedwe opangidwa ndi mano amakhala akuthwa kwambiri komanso odulira olimba, omwe amathandiza kudya mwala, amachepetsa kukana kwa mano odula kuti apite patsogolo, komanso kukonza mphamvu yoswa miyala. pepala lopangidwa ndi diamondi.