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Columbia River K400KXP Ken Onion Ripple 2 Frame Lock, 2.7" Plain Acuto Steel Blade, Charcoal Handles

Customer Reviews 4.000 Read 3 reviewsWrite a Review
Part Number: CRK400KXP
Manufacturer: Columbia River (CRKT)
Retail Price: $125.00
Our Price: $79.95
On Sale:
$69.95
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Description
CRK400KXP: Ripple 2
Columbia River Knife & Tool

He's back. He's here. Ken Onion Ripple.

In their first collaboration, Ken Onion and CRKT introduce their Ripple series of folding frame locks with premium stainless steel build and a stiction-free IKBS ball-bearing pivot.

Columbia River Knife & Tool and noted knife designer Ken Onion are proud to introduce their first collaboration together, the Ripple folding knife series.

This knife is noteworthy for its exceptional manufacturing quality, premium stainless steel build, plus an almost unbelievable silky smooth and fast opening action thanks to the use of the IKBS internal knife ball bearing system.

The modified drop point blade has a high hollow grind, swedged top edge, a high satin finish and Razor-Sharp cutting edge. Steel is premium Acuto, stainless, noted for its high chromium and molybdenum content and hardness of 59-60 HRC. It is instantly opened by pressing the blade flipper with either hand. For safety while closed, the blade has a ball detent.

Even the best conventional blade pivot bearings have some degree of friction which resists initial movement, or “stiction.” In contrast, the Ripple blade opening action is almost friction-free due to the IKBS ball bearing system. This innovative and simple design places eight uncaged ball bearings on each side of the blade pivot in races which are machined into the stainless steel handle. It is compact and adjustable at the blade pivot screw if ever needed. Not only is opening and closing exceptionally smooth, the IKBS system is durable and requires little maintenance, and yields a folder with great rigidity and no blade play.

This Ripple KX400 models are frame lock open build knives with stainless steel frames. In typical Ken Onion attention to detail, the frame lock does not create an unsightly gap in the right frame, but its cut is neatly integrated into the grip design of the frame, which is CNC machined with a complex ‘ripple’ textured pattern plus 44 small lightening holes.

The Ripple K400KXP receives a black titanium nitride coating, which we then hand buff to give a pocket worn look, that is to lightly reveal the underlying stainless steel on the high points. The Ripple K400BXP achieves the same effect, but with a dark ultramarine blue titanium nitride finish.

Both models feature a removable stainless steel mirror polished pocket clip, high-mounted, and also with small CNC-drilled holes.

This knife combines brilliant design, custom knife quality, and advanced manufacturing technology.

Specifications
  • KX405KXP: High Satin blade finish with Charcoal Titanium Nitride frame coating Pocket Worn, Razor-Sharp Cutting Edge
  • Blade Length: 2.7” (69 mm)
  • Blade Thickness: 0.10” (2,5 mm)
  • Blade Steel: Acuto, 59-60 HRC
  • Handle Material: Titanium Nitride Coated Stainless Steel
  • Handle Length: 3.8” (97 mm)
  • Overall length: 6.5” (165 mm)
  • Locking Mechanism: Frame Lock
  • Weight: 2.3 oz. (65 g)
Specifications
  • KX405KXP: High Satin blade finish with Charcoal Titanium Nitride frame coating Pocket Worn, Razor-Sharp Cutting Edge
  • Blade Length: 2.7” (69 mm)
  • Blade Thickness: 0.10” (2,5 mm)
  • Blade Steel: Acuto, 59-60 HRC
  • Handle Material: Titanium Nitride Coated Stainless Steel
  • Handle Length: 3.8” (97 mm)
  • Overall length: 6.5” (165 mm)
  • Locking Mechanism: Frame Lock
  • Weight: 2.3 oz. (65 g)

UPC Code: 794023940015

Frame Lock
Frame Lock
Developed by Chris Reeve, it functions like a liner lock but the lock is comprised of one of the handle scales. It's an extremely strong and easy to manipulate lock.
Pocket Clip
Pocket Clip
Includes a pocket clip for easy accessibility and a more secure carry.
Steel Handles
Steel Handles
Stainless Steel knife handles provide strength and durability while using chromium oxide to create a rust-resistant barrier.
4.000 (3 reviews)
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3 out of 5
J Rambo
NY
Mar 29, 2011
Pros: Blade Material, Blade Sharpness, Weight, Overall Quality, None
Cons: Lock Type, Handle Feel, Handle Material, Lock Ease of Use, Ease of Opening
Um.....
The blade gets a perfect 10! Sharp as can be, love the grind! The handle on the other hand is metal and not very comfortable. And unless you have hands like a little boy you will have a tough time getting a good hold on this. Probably will be selling this knife!
5 out of 5
Blade Boy
Southern n.j.
Sep 09, 2010
Pros: Blade Sharpness, Lock Type, Handle Material, Overall Quality, Pocket Clip, Ease of Opening, Handle Feel, Weight, Lock Ease of Use, Blade Material
Cons: None
Just what you'd expect
Handle is very comfortable in you're hand. Blade is top quality, Cuts very well. The flipper is a little sharp feeling, like if you open it a lot you're finger will hurt. But over all a great knife!
4 out of 5
Kodiak Pa
Kodiak Alaska
Feb 24, 2010
Pros: Blade Sharpness, Ease of Opening, Overall Quality, Lock Type, Lock Ease of Use, Pocket Clip, None
Cons: Handle Feel, Weight
Light Duty Knife, Well Made, Quik Opening, Awesome Blade Shape
But maybe too light and at 2.7" a bit too small for my taste. The knife is well made and one of the smoothest flippers I have ever tried. The blade shape is very utilitarian. The CNC machining is very symetrical and well done. This is a light duty type of knife, more in the line of a gentleman folder. Not for heavy duty & I wouldn't recommend it as a tactical folder. Would make an awesome gift. The frame lock seems to work well.
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