SCREWDRIVER: The American Sign Language (ASL) sign for "screwdriver"
The sign for "screwdriver" uses the dominant-"H"-hand as if it were a screwdriver.  Put the tip of your screwdriver on the non-dominant hand palm and make two turns.

SCREWDRIVER:

Sample sentence: What is the name of the type of screwdriver that looks like an X?

Notes: 

Also see: DRILL

HAMMER

PLIERS

TOOL

WRENCH