Distributive determiners (also called distributive adjectives) are used to refer to individual people or things. They can also refer to a group of people or things within a group.
Both
I use both these tools every day.
Both refers to: two things or people.
Each
Each of us needs to put in an extra effort today.
Each refers to: one person or thing separately.
Every
We need every possible assistant for this project.
Every refers to:all people or things in a group.
Either
Choose either the chainsaw or the axe to complete this task.
Either refers to: one or the other.
Neither
In this situation, neither tool would help.
Neither refers to: none of them.
Neither… nor…
They chose neither the axe nor the chainsaw.
Neither… nor… refers to: not one or the other.
Half
Building a camp will require half the remaining wood in our warehouse.
Half refers to: 50% or ½ of the total quantity.
All
I used all my strength to lift this beam.
All refers to: the total quantity.