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Cold Steel 39FK Double Agent I Karambit 3" Plain Blade, Grivory Grip - 39FKZ

Customer Reviews 4.673 Read 55 reviewsWrite a Review
Part Number: CS39FK
Manufacturer: Cold Steel Knives
Retail Price: $49.99
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CS39FK: Double Agent I - Karambit Blade Style
Cold Steel®

Cold Steel’s Double Agent™ neck knives possess a significant set of advantages worth noting. Designed by Zach Whitson, with either a Karambit or Clip Point blade style, they’re thin, flat, and super light (a little over 3 ounces including sheath). This makes them easy to conceal and very comfortable to wear. Their most audacious and notable feature, however, is their double ring handle design. Slip an index finger through the front ring nearest the blade and your pinky finger through the rear ring and close your fist to obtain a forward grip and vice versa for a reverse grip.

It doesn’t matter how hard you cut, chop, hack, hammer or thrust with the Double Agent™. Its twin rings will always prevent your hand from sliding forward on the razor sharp edge and will likewise resist the effects of centrifugal force or the efforts of an adversary to wrest the Double Agent™ from your grasp.

  • Blade: 3"
  • Overall: 7 7/8"
  • Thick: 2.3mm
  • Weight: 2.5 oz.
  • Steel: Japanese AUS 8A Stainless
AUS-8 Stainless Steel
AUS-8 Stainless Steel
A very widely used EDC steel, AUS-8 can take a very nice edge while also maintaining moderate edge holding and corrosion resistance properties.
Kydex Sheath
Kydex Sheath
Waterproof, scratch resistant, and low friction. It will hold its shape and makes a great alternative to leather.
Zytel Handles
Zytel Handles
A nylon polymer that is lightweight and extremely durable, Zytel can be shaped and textured to provide excellent grip.
4.673 (55 reviews)
4.7 out of 5 stars
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5 out of 5
Sep 18, 2016
Pros: Blade Material, Materials, Handle Material, Weight, Overall Quality, Blade Sharpness
Cons: None
Using every day
This knife is ten times better than expected. I have been using it for landscaping work for weeks now and it has been amazing. The edge, size, shape and grip is what makes me keep on using it day after day. So if I can depend on it for all it has cut for hours day after day then it will be ready for anything else as I keep it with me all the time. BTW, It sharpens back up hair shaving sharp when needed and it last a long time before needing an edge dressing. Will buy more.
5 out of 5
Jeffery M
Greenville, Sc
Sep 02, 2016
Pros: Blade Material, Materials, Handle Material, Weight, Finish, Overall Quality, Blade Sharpness
Cons: None
Great knife
This blade is great. Light enough to be worn around the neck. I was worried about the handle but it is actually quite comfortable. Very sharp right out of the package. I will definitely buy more from cold steel and my friends all want one also. Great buy. The only thing that needs work is the sheath. It needs bigger eyelet holes.
4 out of 5
James M Innovative Fighting Arts
Indian Valley, Id
Aug 11, 2016
Pros: Materials, Overall Quality, Finish, Sheath/Scabbard, Handle Material, Blade Material, Blade Sharpness
Cons: Sheath/Scabbard, Weight, None
Great little knife
Love this blade. A little larger than many neck knives but the design as in most kerambits is very good. the dual finger holes allow for some real security to avoid a blade being used against you. Remember this is a defense knife. The holes also allow for devastating empty hand types of techniques with the blade. This in turn requires less blade skill to be effective. On the down side you do know you are carrying it as its length can be a problem at times. It is not an overly long weapon though. It would be great to have a sheath that can dual as an horizontal belt carry for front carry on a belt. If Cold Steel added that without the price going up too much Id buy a bunch.
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