n.手搖鉆

a pointed and threaded tool for drilling and boring that is secured in a brace,bitstock,or drill press 曲柄、鉆柄或鉆床之上用于鉆孔的尖頭工具

the cutting part of a drill; usually pointed and threaded and is replaceable in a brace or bitstock or drill press 鉆機(jī)的切割部分；通常是尖頭的有螺旋狀圖案并且可以更換，用在鉆柱鉆柄或鉆床上

"a pointed and threaded tool for drilling and boring that is secured in a brace, bitstock, or drill press." 曲柄、鉆柄或鉆床之上用于鉆孔的尖頭工具。

the cutting part of a drill; usually pointed and threaded and is replaceable in a brace or bitstock or drill press. 鉆機(jī)的切割部分；通常是尖頭的有螺旋狀圖案并且可以更換，用在鉆柱鉆柄或鉆床上。

the cutting part of a drill; usually pointed and threaded and is replaceable in a brace or bitstock or drill press . 鉆機(jī)的切割部分；通常是尖頭的有螺旋狀圖案并且可以更換，用在鉆柱鉆柄或鉆床上。