Sei ma "cone bits" matatu ari iwo anonyanya kushandiswa?

Zvidhirowa zveTricone zvinoshandiswa zvakanyanya muindasitiri yekudhirowa matsime kana zvichidikanwa kuti upfuure nematombo akapfava uye akaomarara.

Nekuda kwekurovera, kupwanya uye kuchekwa kwedombo kana roller cone ichitenderera, kubatana pakati pecone neburi repasi kudiki, kumanikidzwa kwacho kwakakwira, torque yekushanda idiki, uye pepa rebasa rine urefu hwakakura uye rinogona kushandiswa pamatombo emarudzi ese.

Ndeipi musimboti wekushanda kwe tricone drill?
Zvidimbu zveTricone zvinoenderana nekukanganiswa kwekoni pakuumba, kupwanya uye kutsvedza danda rekupwanya dombo.