Hands Idioms

1-)  Hands were tied

Example: The thief was guilty, so his lawyer hands were tied. 

2-) Safe pair of hands
Someone who you can´t trust to do an important job well.

Example: That is an important project, you can´t assignment to Jorge, He is a new employer, He is a safe pair of hands.

3- To lend you a hand
To help one; to give one assistance

Example: Hi lends you a hand, are you ok?

4-) Lifts a finger

5-) Old hand

Example: He has been working there for a long time. He has a old hand.

6-) Rub shoulders 
Spend time with royal, rich or famous people.

Example: I heard you were rubbing shoulders with the governor last Saturday.

7-) Long arm of the law
The police; the law

8-) The back of your hand

9-) As a rule of thumb

Example: A good rule of thumb is to plant your seedlings around the end of May.

10-) Point the fingers

Example: I have to point me finger to that thief.