钻孔器；钻孔者的英文

• piercer

• 钻孔:    drill; bore; drill hole perf ...
• 器:    implement; utensil; ware
• 钻孔者:    borer; driller; piercer
• 钻孔器:    bit brace; bitbrace; borer; boring cutter; brace bit; broach; burr; cork drill; drill ponch; gadder; hole digger; hole-digger; perforator; piercer; reamer; sinker; terebra; trepan; wimble
• 穿孔器, 钻孔器:    cork-borer