drill bow

a bow used to rapidly turn a drill around which the bowstring takes a turn

Japanese Meaning

ドリル（回転装置）を素早く回すために用いられる弓状の道具

He used the drill bow to rapidly rotate the spindle and bore a hole through the plank.

彼は弓式ドリルを使って軸を素早く回転させ、板に穴を開けた。

Sense（1）

a bow used to rapidly turn a drill around which the bowstring takes a turn

drill bows

（ plural ）