I can’t verify a Subnautica 2 repair tool recipe from here, and the game’s public guidance appears to be based on recent community videos rather than an official, stable craft page. The safest answer is that you’ll need to unlock the blueprint from fragments first, then craft it at a fabricator.

What players are saying

Recent guides describe the repair tool as a blueprint you collect in parts from several early locations around the lifepod area. One guide says there are three blueprint fragments , found in a wreckage/bench area, a small base, and a deeper structure or tube-like area.

Crafting materials

The same community guides list the crafting ingredients as titanium ingot, wiring kit, basic battery, and sulfur. In older Subnautica guides, the repair tool was also made from titanium, silicone rubber, and cave sulfur, so the exact recipe in Subnautica 2 may have changed from the first game.

How to make it

  1. Find all required repair tool blueprint fragments.
  1. Return to your base or fabricator.
  1. Craft the needed parts first, then build the repair tool at the fabricator.

Practical note

If you’re following a guide, use the lifepod as your starting point and expect the route to be roughly southeast, west, or northeast depending on which fragment you’re chasing. The videos I found give different landmark routes, which suggests the exact locations may vary by guide version or map interpretation.

TL;DR: In Subnautica 2, the repair tool appears to be unlocked by collecting blueprint fragments first, then crafted with titanium ingot, wiring kit, basic battery, and sulfur at a fabricator.