Meno a entsoeng ka daemane (DEC) a ka aroloa ka: meno a nang le daemane a kopantsoeng, meno a pota-potileng a daemane, meno a pota-potileng a daemane, meno a daemane a ovoid a kopaneng, meno a nang le daemane a kopantsoeng, meno a nang le daemane a sephara a kaholimo ho latela ponahalo le tšebetso. etc.
E sebelisoa haholo ho epolla boenjiniere le masimong a kaho joalo ka li-roller cone bits, li-down-the-hole bits, lisebelisoa tsa ho cheka tsa boenjiniere le mechini e pshatlang. Ka nako e ts'oanang, palo e kholo ea likarolo tse itseng tse sebetsang tsa PDC bit li sebelisoa, tse kang meno a ts'oanelang, meno a bohareng, meno a lekanyang, joalo-joalo.