Correct

一竿子插到底

/ yī gānzi chā dàodǐ /
Strokes

Example

Definition

one pole penetrating to the bottom—carry (a task/directive/etc) down to the grass-roots level; carry sth through to the end; go straight to the point

1
Chuán
传达
wénjiàn
文件
yào
gānzi
竿子
chā
dào
到底
  

The document should be relayed right down to the grass-roots level.