go over/through something with a fine-tooth comb

US /ɡoʊ ˈoʊvər/θruː ˈsʌmˌθɪŋ wɪð ə faɪn-tuːθ koʊm/
UK /ɡoʊ ˈoʊvər/θruː ˈsʌmˌθɪŋ wɪð ə faɪn-tuːθ koʊm/
"go over/through something with a fine-tooth comb" picture
1.

esaminare con il pettine a denti fitti, passare al setaccio

to examine something very carefully, looking for mistakes or problems

:
The auditors will go over the accounts with a fine-tooth comb.
I revisori esamineranno i conti con il pettine a denti fitti.
We need to go through the contract with a fine-tooth comb before signing it.
Dobbiamo esaminare il contratto con il pettine a denti fitti prima di firmarlo.