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Cold Steel Range Boss 4034SS Folding Knife - Dark Earth

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94% of 100
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Cold Steel Range Boss 4034SS Folding Knife - Dark Earth

Folding EDC knife (Every Day Carry) with a blade featuring a Clip-Point profile. The blade is made of German 4034SS steel, which offers excellent corrosion resistance. The blade has been finished using the Stonewash method, giving it a matte finish that eliminates the risk of glare. The knife opens using a double-sided thumb stud. The Tri-Ad Lock secures the blade in the open position. The Zy-Ex composite handle in Dark Earth provides a non-slip grip. A spring-loaded clip ensures comfortable, everyday carry.

German 4034SS steel

The blade is made of German 4034SS stainless steel, which is characterized by good strength and high corrosion resistance. After proper heat treatment, it achieves a hardness of 54–57 HRC, ensuring a durable and easy-to-sharpen cutting edge.

clip-point blade with stonewash finish

The blade, with a Clip-Point profile, is 101 mm long and 3.5 mm thick. It features a smooth cutting edge achieved through a full flat grind. The blade geometry ensures high cutting efficiency while maintaining adequate strength, allowing for more intensive use of the knife. The blade is finished using the Stonewash method, which gives it a matte texture that reduces light reflections and increases scratch resistance.

handle made of glass-fiber reinforced nylon

The handle scales are made of durable Zy-Ex composite, which, thanks to its non-slip texture, ensures a stable and secure grip. Finger grooves increase control over the tool, even with wet or dirty hands. The back of the handle features jimping, which provides a secure thumb rest and increases control over the blade while making cuts.

A spring-loaded clip on the handle ensures convenience for everyday carrying, allowing the knife to be clipped to a belt or the edge of a pocket. The clip is reversible and can be mounted to suit both right- and left-handed users.

tri-as lock, double-sided thumb stud

When open, the blade is locked in place by the Tri-Ad Lock system, an improved version of the classic Back Lock. It is one of the most stable and durable locking mechanisms available in folding knives. The blade features a thumb stud on both sides, allowing for quick, one-handed opening of the knife.

main features

  • Clip-Point blade with a flat grind
  • blade made of German 4034SS steel
  • Stonewash blade finish
  • opens with a double-sided thumb stud
  • Tri-Ad Lock
  • contoured Zy-Ex composite handle scales
  • jimping on the back of the handle
  • spring-loaded carrying clip
Cold Steel


Militaria.pl is the official distributor of Cold Steel.


Cold Steel is a respected American brand of knives, machetes, and tactical tools, founded in 1980 in Irving, California. The company gained popularity thanks to innovative solutions such as Kraton® handles and American Tanto blades, appreciated by uniformed services and military enthusiasts. It also introduced its own steel alloys, such as San Mai III®, which provides high durability and wear resistance. Cold Steel patented the Tri-Ad™ Lock blade locking mechanism, which guarantees safe use. The brand works with respected knifemakers, including the company's founder Lynn C. Thompson and Andrew Demko, whose passion and experience contribute to the high quality of the products.

More Information
Type Folder
Style Multipurpose
Blade length 101 mm
Blade thickness 3.5 mm
Blade profile Clip-Point
Blade edge Plain
Blunt resistance Low
Corrosion resistance Good
Lock type Tri-Ad Lock
Overall length 228 mm
Main color Dark Earth
Blade material 4034
Opening method Thumb stud
Handle Fiberglass reinforced nylon
Clip for carrying Yes
Holster included No
Weight 100 g
EAN 705442019855
Manufacturer code CS-20KR9
Brand Cold Steel
4034SS feature
4034SS
4034SS - an alternative designation for Krupp 4034 steel, also known as X46Cr13 or 1.4034, is a German martensitic stainless steel developed by ThyssenKrupp. The carbon content of 0.46% ensures moderate hardness, while chromium (13%) guarantees high resistance to corrosion and oxidation. The steel also has good hardenability and structural stability thanks to the addition of manganese (approx. 1%) and silicon (approx. 1%). After hardening, the steel achieves a hardness of 54-57 HRC, which ensures a durable but easy-to-resharpen edge. Thanks to its combination of corrosion resistance, easy maintenance, and good elasticity, 4034SS is a popular choice for the production of everyday carry (EDC) knives, hunting and kitchen knives, and tools.
Tri-Ad Lock feature
Tri-Ad Lock
Tri-Ad Lock is a lock developed by Cold Steel and Andrew Demko, considered one of the strongest systems in folding knives. Its key element is a stop pin, which takes the pressure from the blade and distributes it to the handle, protecting the lock from wear and overload. The mechanism is designed to self-adjust over time, which maintains the reliability of the lock even after prolonged use. In tests, it has proven resistant to loads of up to hundreds of pounds, confirming its durability.
Stonewash feature
Stonewash
Stonewash is a blade finishing technique that involves treating steel in a drum filled with stones, ceramic abrasives, or beads. The impact of the material creates a characteristic, irregular pattern with micro-scratches, giving the effect of a matte, slightly “aged” surface with a raw, practical appearance. The finish gives the knife an aesthetic look and masks minor scratches and marks that occur during use, keeping the blade looking like new for longer. The matte texture reduces light reflections, which is valued in tactical and outdoor knives, and the micro-scratches can further reduce friction during cutting. Due to its durability, discreet appearance, and ease of maintenance, stonewash is popular in EDC, field, and tactical knives.
Zy-Ex feature
Zy-Ex
Zy-Ex is a composite material developed by Cold Steel, based on glass fiber reinforced polyamide. It is characterized by high mechanical strength, abrasion resistance, and low water absorption, allowing it to retain its properties even under intensive use in harsh conditions. The material is lightweight yet very rigid, allowing for the construction of a solid handle without excessively increasing the weight of the knife. The surface of Zy-Ex is designed to imitate the structure of natural wood, which gives it an attractive appearance and improves grip. Thanks to the combination of these features, Zy-Ex is used in tactical, outdoor, and EDC knives.

Reviews with photos

Number of reviews: 10

  1. F... Review confirmed by purchase
    100%

    With full conviction I give it 5 stars. A good price for Cold Steel. The lock holds solidly over time. The knife is very light, flat, and comfortable to carry. If someone likes full handles filling the hand, they should choose another. For me, carrying comfort is above comfort of momentary use. The clip is fully functional if you use fairly thin material, as usually found in tactical pants. If it's crucial to wear it clipped to jeans, you'll need to buy another clip, bend the existing one, or choose a different model. As for the handle texture – it's perfect. A 5-minute operation with sandpaper under the place the clip presses eliminates material wear.

  2. m... Review confirmed by purchase
    80%

    Cool little knife, a lot of blade at low weight, the lock gets loose pretty quickly, the clip holds very well, but the handle's texture is a misunderstanding – I haven't seen such a pocket-destroying grater in a long time. The knife itself is very flat and comfortable – steel is nothing special, but still has something to it.

  3. B... Review confirmed by purchase
    100%

    Great big knife, for me it is perfect for preparing meals outdoors thanks to the long blade and the stainless steel used, it works very well for this purpose. Of course, it is also suitable for other types of work.

  4. D... Review confirmed by purchase
    100%

    Large blade with a nice finish, the tri-ad click is pleasant to the ear and most importantly, right out of the box you can chop vegetables and fruit without any problem. I recommend it.

  5. K... Review confirmed by purchase
    80%

    A lot of sharpness for a reasonable price. Average build quality. Unfortunately, the clip serves only as a decoration. On the plus side, the Tri-ad Lock holds perfectly. Zero blade play, which is a positive surprise for such a thin handle.

  6. R...
    100%

    A lot of sharpness, very flat, great lock. Express shipping.

  7. W...
    100%

    Very large blades in a slim form, a nice slicer for fruit or other food.

  8. W...
    100%

    A Broken Skull, but for less money ^^ It has a slightly thicker handle, which makes it fit better in the hand and allows for longer use without blisters.

  9. M...
    100%

    Despite having worse steel than the Air Lite, I actually liked it more, mainly due to the full flat grind.

  10. M...
    80%

    A nice, larger folder with a quite comfortable handle, but at this price I would expect better steel.

No reviews

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