1) They are hand and glove.
2) The Navy and the Cost Guard work hand and glove, especially in war time.
3) Road and rail transport ought to work hand and glove.
4) Several journalists were found to be hand and glove with enemy agents.
5) I don't trust those two, they are hand and glove together.
6) Several high - ranking diplomats were found to be hand and glove with enemy agents.