Pliers have two points at the end of them.
Pliers are made from steel.
We use pliers to turn nuts and bolts.
We use a level to make sure that things are level and not tilted.
It is good to use a level when you hang a shelf on a wall.
We use a drill to drill a hole in a wall.
After you drill a hole, you can put a screw in it.
You can hang a clock or a picture from the screw.