Mann Co. Supply Crate Key

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Let's do dis! Click to listen — The Scout on unlocking secret crates

”

Mann Co. Supply Crate Keys are single-use tool items which are available from the Mann Co. Store. They are only obtainable from the store so far and cannot be traded. They are the only method to unlock crates, another type of item which occasionally contains a singular rare item.

This item is a Tool. It can be applied to another item in your backpack, and is consumed in the process. Click the 'Use with...' button in the backpack to start the process of applying it.