钻头牙轮底平面 cone backface
平底牙轮钻头 flat toothed bit
四牙轮钻头牙轮支架 bridge of the bit
牙轮钻头钻进 roller boring; roller bit drilling
移轴牙轮钻头 offset cone bit
轴线与平面交点 cross point between axe and plane
埋头平头钻头 countersunk flat head bit
差异式独牙轮钻头 zublin differential bit
纯滚动牙轮钻头 true-rolling bit
带蹼牙轮钻头 DM bit
单牙轮钻头 one-cone bits; zublin simplex bit
定向型三牙轮钻头 directional-type tricone bit
独牙轮钻头 zublin bit
非自洁式牙轮钻头 nonself-clearing bit; non self-clearing bit
钢齿牙轮钻头 steel tooth bit; steel tooth roller cone bit
滚柱轴承锥形牙轮钻头 cone type roller bearing rock bit
密封轴承牙轮钻头 sealed bearing rock bit
盘式单牙轮钻头 disc one-cone bit
喷射式三牙轮钻头 jet type tricone bit