★ Butterfly Knife | Case Hardened
Summary
Category
Skin
Type
Knife
Weapon
Butterfly Knife
Finish
Case Hardened
Finish Style
Patina
Designer
Valve
Released
July 1st, 2014
Finish Catalog
44
Pattern Variants
Yes
Model Version
CS2
Popularity
99%
Item Class
Wear Range
Every weapon skin has a wear value, also known as float value, that determines how
scratched it looks and which exterior it belongs to:
| Range | Exterior |
|---|---|
| 0.00 – 0.07 | Factory New (FN) |
| 0.07 – 0.15 | Minimal Wear (MW) |
| 0.15 – 0.38 | Field-Tested (FT) |
| 0.38 – 0.45 | Well-Worn (WW) |
| 0.45 – 1.00 | Battle-Scarred (BS) |
Each skin also has a minimum and maximum wear value, defining its wear range.
The colored line shows the available range for this skin.
Blue Gems
Tier 1
182
652
398
838
29
Containers
Community Rating
4.5
out of 5
13.6K Votes
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Blog Posts
Butterfly Knife Case Hardened: Blue Gem Seed Patterns
The Best Butterfly Knife Skins In CS2
Supply
18.6K
total items in circulation
Factory New
51
Minimal Wear
367
Field-Tested
557
Well-Worn
364
Battle-Scarred
280
Drop Chance
Operation Breakout Weapon Case
Weapon Case
Exceedingly Rare
Rarity
Odds
1 in 391
Total
1 in 391
Case Hardened
Butterfly Knife
Odds
1 in 13
Total
1 in 5.1K
Field-Tested
Exterior
Odds
1 in 3
Total
1 in 15.4K
StatTrak
Quality
Odds
1 in 11
Total
1 in 169K
Final Result
Total Odds
1 in 169,433
0.00059%
Liquidity
52%
Moderate
Price Statistics
Current Price
$791
24h Change
0.00%
+$0.00
7d Change
4.00%
+$30.41
30d Change
3.53%
+$26.97
1y Change
37.73%
-$479
All-Time High
$1,319
Oct 22, 2025
All-Time Low
$0.03
May 01, 2015
24h Low
24h High
$791
$791
7d Low
7d High
$736
$791
30d Low
30d High
$736
$794
1y Low
1y High
$576
$1,319
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Inspect Skin
Wear
Patterns
3D View
Seed
Price History
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Description
This is a custom-designed balisong, commonly known as a butterfly knife. The defining characteristic of this weapon is the fan-like opening of a freely pivoting blade, allowing rapid deployment or concealment. As a result, butterfly knives are outlawed in many countries. It has been color case-hardened through the application of wood charcoal at high temperatures. A little color never hurt anyone
History
The Butterfly Knife "Case Hardened" was first introduced to Counter-Strike 12 years ago, on July 1st, 2014. It was released as part of the Operation Breakout Weapon Case, alongside the "Operation Breakout" update. The skin was created by Valve itself instead of a community designer.
Origin
The Butterfly Knife "Case Hardened" can be obtained by opening the Operation Breakout Weapon Case. The skin is not part of any collections.
Popularity
With a popularity of 99%, the Butterfly Knife "Case Hardened" is currently extremely popular, which makes it one of the most popular items in CS2. This popularity score is based on recent user engagement and market activity for the skin.
Rarity
The Butterfly Knife "Case Hardened" is one of 604 Knife skins. The rarity of the skin is Covert, which makes it a super rare drop with a chance of 0.020% from the Operation Breakout Weapon Case. That is roughly 1 in every 5.1K drops.
Availability
With a price range between $602 and $1,950, the Butterfly Knife "Case Hardened" is a very expensive skin. Fortunately, it's currently widely available and can be purchased on multiple different markets.
Versions
The float value of the Butterfly Knife "Case Hardened" ranges from 0.00 to 1.00, which makes the skin available in all exteriors. For each exterior, there also exists a StatTrak version of this skin.
Finish Style
This Butterfly Knife skin has been painted in the "Patina" style, with the Case Hardened finish. A patina is a chemical reaction that forms a non-reactive, hardened shell over metallic parts. Real-life weapon patinas include case hardening, cold bluing, and acid forced patinas. The look of the Case Hardened finish is affected by its pattern index. The skin uses the new CS2 model.
Community Sentiment
The Butterfly Knife "Case Hardened" has received 13.6K votes on CSGOSKINS.GG, leading to an average rating of 4.5 out of 5 stars. The skin is currently also owned by the professional CS2 players ScreaM and westmelon.
Gameplay Showcase
