★ Butterfly Knife | Blue Steel
Available from the Operation Breakout Weapon Case, this Covert butterfly knife undergoes a cold bluing process that produces deep, layered tones across the blade and handle. Cold bluing is a chemical finishing technique that creates a blue-grey patina on metal surfaces, offering both a subdued aesthetic and a degree of corrosion resistance. The full float range of 0 to 1 means examples vary considerably in surface wear. StatTrak versions are available.
Cheapest wear we have on this page. Pattern / float overpay is extra.
Operation Breakout Weapon Case: (case+key) ÷ drop chance. Average, not a promise.
Covert / missing collection peers: no contract estimate.
Price History & Performance
Price by Wear
Cases & Drop Odds for ★ Butterfly Knife | Blue Steel
Probability of unboxing this skin per single case open, expected number of opens until you get one, and the case's expected return based on the current market value of every skin inside.
| Case | Drop Chance | Expected Opens | Open Cost | Market EV | EV vs Cost |
|---|---|---|---|---|---|
 Operation Breakout Weapon Case | 0.0200% | 5,000 | $14.00 | $0.65 | -95.4% |
Drop chance = official rarity odds ÷ size of that rarity pool inside the case. Market EV is the probability-weighted average of every skin's lowest current listing. "EV vs Cost" compares that EV against the case + key price — negative means opening loses money on average.
Where to Buy ★ Butterfly Knife | Blue Steel
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