The RUST Garry’s Mod Tool Gun is a player-craftable construction tool available to those who own both RUST and Garry’s Mod, having played at least 20 minutes of the latter in the last 2 years. It is a creative reskin of the Hammer, with a slightly extended range, a distinct laser that shoots instead of the typical swing, and a mildly faster repair time coefficient.
Every structure created by any player that has been upgraded had a Hammer used in the process. The Hammer is one of the most functional multi-tools available in the game.
In addition to being the end-all foundation and building upgrade tool (when privilege is granted), Hammers in RUST also serves several other key game functions.
Within the first 10 minutes of building a structure, the Hammer may be used to demolish said structure. Within 10 minutes of upgrading a structure (assuming the 10-minute build window has passed), the hammer can also rotate walls.
Hammers are also responsible for allowing players to pick up deployables they might want to remove or relocate. Things such as Furnaces and Sleeping Bags may be added back to player inventories so long as proper building privileges are established.
Hammers can check for structural stability. While this might not seem like the most exciting feature, they are absolutely clutch for finding hidden base bunkers. If you scan a series of foundations that are each at 100% stability and suddenly notice a triangle ‘foundation’ at 13% stability, chances are you’ve discovered a stability bunker.
Hammers are also one of the best ways to find and uncover hidden Small Stashes buried in the ground (the other being by placing a raised thatch foundation over them). Simply slap where you believe a stash is, and it will register as a solid impact, whereas normal ground will not.
Finally, Hammers are key in repairing structures that may have been damaged by raiding or other means. When the player is holding appropriate repairing materials in their inventory, using the Hammer to hit an entity or structure will cause materials to be absorbed and health to be replaced. If materials aren’t present, a small informational box will appear, citing what is required for repair.