Use your Hunter's Hammer to smash various items into smaller parts!
This Crafting tab option can be used to smash certain items for use in crafting other items. A drop-down menu on the Hunter's Utility Hammer page (in-game) lists items that can be smashed or dismantled. When an item is chosen, from the list it appears in a box on the right side that lists what smashing the item will produce and asks how many the player wants to smash. The bold warning at the bottom of this box says, "Warning: There may not be a way to reassemble this item!" Despite the warning, all currently known smashable items can be reassembled. Some may require additional purchased items, such as Curds and Whey (for SUPER|brie+) or the Bead of Slumber (for the Obelisk of Slumber), others do not (e.g. DeathBot Parts).
The following items are known to be produced with the Hunter's Utility Hammer: