1. Find the blueprints of the successfully scanned drill arm.
2. Return to your base, build the Moon Pool, and build the Moon Pool Console in the Moon Pool.
3. Open the console and find and craft the Power Drill Arm in the Sea Shrimp.
4. Bring the crafted drill arm to the white area on the left side of the Sea Shrimp, left mouse click on the white area, i.e. the Sea Shrimp's console, and then press the left button on the drill arm in the backpack to successfully equip it.
5. Use the power drill arm by controlling the right mouse button, if you are used to operate it with your left hand, you can hold down the left mouse button in the console and drag the power drill arm to the other side.