1) double screw-teeth bit
双刀齿钻头
2) two-way bit
双刮刀钻头
3) included angle of teeth
钻头齿间铣刀角
4) double-blade auger
双刀片螺旋钻头
5) bicone type rolling cutter bit
双圆锥齿轮钻头
6) welded teeth cut rock hobbing drill bit
焊齿破岩滚刀钻头
1.
The paper primarily introduced drilling working principles of welded teeth cut rock hobbing drill bits and its drilling technical parameters in the piling construction, and repair of hobbing teeth and effect of application.
焊齿破岩滚刀钻头适应多种地层钻进，本文主要介绍了焊齿破岩滚刀钻头的钻进工作原理、在桩基施工中的钻进技术参数、滚刀刀齿的修复及应用效果。
补充资料：双刀
1.两把刀。 2.比喻两道锐利的眼光。 3.比喻两种手段。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条