喷射开眼钻头的英文

• jet spud bit

• 喷射:    spout; spurt; jet
• 开眼:    open one's eyes; add to one' ...
• 钻头:    boring crown; bore bit; dril ...
• 开眼钻头:    hole opener; opening bit
• 扩眼钻头:    enlarging bit; reamer; reaming bit; reamingbit; redrill bit