Sharpening Station

The Sharpening Station is a furniture item that, when placed and pressed on, applies the Sharpened buff, which increases armor penetration of all melee weapons by  12 /  4.

It can be found in Underground Cabins in the Underground Jungle. On the, it can also be purchased from the Merchant for during Hardmode.

Trivia

 * The Sharpening Station is the only one of the four class furniture buff items that cannot be purchased.
 * The Crystal Ball is purchased from the Wizard.
 * The Bewitching Table can be purchased from the Witch Doctor (though it can also be found in the Dungeon).
 * The Ammo Box is purchased from the Traveling Merchant.
 * In real life, sharpening stations, also known as s, are used to sharpen blades.