Li-bits tsa DTH tsa khatello e mahareng le e tlase
Melemo eaHFDho phunya metsi
Sebaka sa ho phunya se entsoe ka lisebelisoa tsa alloy, tse nang le bophelo bo bolelele ba ts'ebeletso 'me li phahame ho feta lihlahisoa tse tšoanang, 'me sekhahla sa ho phunya se pshatla lejoe ka tšusumetso le ho kuta. Li-drill bits tsa HFD li na le matla a ho se sebetse 'me li loketse ho cheka ka mokhoa o bonolo le o thata (9-grade drillability of rock,hard rock drilling) , ha ho bapisoa le ntho e tloaelehileng, haholo-holo bakeng sa ho cheka lejoe la grade 6-8 phello e bohlokoa haholo.
