Tools

Tools are items primarily used to interact with the game's environment, i.e. destroying blocks and converting them into carryable objects. All tools, except the Breathing Reed can be used as melee weapons, although they generally offer less damage than any of the weapon counterparts of similar tiers.

Pickaxes
Pickaxes are tools that can be used to convert most terrain blocks into collectable objects. They may also be used to destroy planted tree saplings. Their tier defines the type of blocks that can be mined as well as the number of hits it takes to remove a single block.
 * Copper Pickaxe
 * Iron Pickaxe
 * Silver Pickaxe
 * Gold Pickaxe
 * Nightmare Pickaxe
 * Molten Pickaxe

Axes
Axes can be used to fell trees and remove placed pieces of wood. Wooden platforms have to be removed with a hammer though.
 * Copper Axe
 * Iron Axe
 * Silver Axe
 * Gold Axe
 * War Axe of the Night
 * Meteor Hamaxe
 * Molten Hamaxe

Hammers
Hammers are special tools to remove placed objects such as furniture, wooden platforms and most background walls, as well as glass blocks.
 * Wooden Hammer
 * Copper Hammer
 * Iron Hammer
 * Gold Hammer
 * The Breaker
 * Meteor Hamaxe
 * Molten Hamaxe

Miscellaneous
The Breathing Reed is a special tool that can't be used to manipulate any blocks, but is listed here due to it not being an actual weapon.
 * Breathing Reed