Handle

Handles are a category of items, usually long and tubular, easy to grip. They're called handles for a reason. They are the mainstay of many tools. Usually, they affect the durability of a tool, whereas the other components used to make the tool determines the efficacy of the tool.

List of items that can be handles
Stick

Bone

Stone Pole

List of tools that use handles
Spears

Shovels

Picks

Axes

Maces

Shears