Columbia River K400BXP Ken Onion Ripple 2 Folding Knife 2.7" Plain Premium Acuto Steel Blade, Blue Stainless Steel Handles
CRK400BXP: K400BXP Ken Onion Ripple 2
This is an amazing collaboration between Ken Onion and CRKT, the Ripple frame lock folder with premium Acuto stainless steel and a near friction-free IKBS ball-bearing pivot. This is not the aluminum handle model with a liner lock but the premium model with stainless steel handles and a durable frame lock. It's lightweight, fast, ergonomic, and a beautiful example of Ken Onion's eye for design. It's a gorgeous knife and with the Acuto steel, something you won't have to sharpen too often. It's as beautiful as it is fun to play with and could easily replace your current EDC blade.
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 model is a frame lock open build knife with stainless steel frame. 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 blue 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.
- K400BXP: High Satin blade finish with Blue 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)
- Made in Taiwan
UPC Code: 794023940008
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.
Includes a pocket clip for easy accessibility and a more secure carry.
Stainless Steel knife handles provide strength and durability while using chromium oxide to create a rust-resistant barrier.
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