How to get Large Key Holder

Crafted from

Engineering 4 450 energy

1× Key Holder
3× Aluminum
3× Steel

Requires welding equipment

Parts you gather 9

Everything above bottoms out here, through 14 recipes and 11 tiers. Amounts are per recipe, not multiplied down the chain — see the whole crafting chain →

8× Gnosis
5× Fabric
3× Boric Acid
2× Half-rotten Fish
2× Multitool
1× Remains of Murmur Devices
1× Strange Artifact
1× Oil
1× Huge Artifact Fragment

Used to craft 1

1× Special Key Holder