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Columbia River K415KXP Ken Onion Ripple 3-1/8" Plain Satin Blade, Black Aluminum Handles

Customer Reviews 4.689 Read 45 reviewsWrite a Review
Part Number: CRK415KXP
Manufacturer: Columbia River (CRKT)
Retail Price: $59.99
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CRK415KXP: Ripple, Aluminum, Designed by Ken Onion
Columbia River Knife & Tool
CRKT and noted knife designer Ken Onion are proud to introduce the Aluminum Ripple K415KXP folding EDC knife. The Ripple is noteworthy for its exceptional manufacturing quality, 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, and a high satin finish. Blade Steel is 8CR14Mov high carbon stainless steel with an HRC rating of 57-59. The blade 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 ball bearings built into the stainless pivot screw. 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. 

The Ripple K415KXP model has locking liner. In typical Ken Onion attention to detail, the aluminum handles are CNC machined with over 40 lightening holes and small ripples. The handles are then hard anodized black and then the top of the ripples are polished off to create a pocket worn finish. 

Ken Onion designed the stainless steel clip so it tucks away nicely in your pocket for every day carry and easy access. This knife combines brilliant design, custom knife quality, and advanced manufacturing technology in true Ken Onion fashion. 

Ken Onion - "Though I have been a devout knife collector since childhood, collecting mostly production knives and anything else I could find, I was unaware of the custom knife industry until 1989 when I saw an issue of Knives Illustrated at a local drug store. From there I found a local knife maker named Stan Fujisaka and begged him to teach me. I made my first knife in November 1991 and have continued the craft since.á While recovering from back surgery in 1996, I decided to try to design a folder that was easier to manipulate than what was available, and not a switchblade. The result was the first assisted opening knife I called "Speed Safe" (Knifecenter note: this model is not assisted) After finding some information on the whole patent process and consultation from an attorney, I got my first patent, creating a whole new category of knives between manual and auto."
  • Blade Material: 8CR14MoV Stainless Steel 58-59 HRC
  • Blade Style: Hollow Ground Drop Point, Satin Finish
  • Blade Length: 3-1/8"
  • Closed Length: 4-1/3"
  • Handle Material: 6061 Aluminum
  • Locking Mechanism: Liner Lock
  • Weight: 2.5 oz.
  • Made in China

UPC Code: 794023941524

Pocket Clip
Pocket Clip
Includes a pocket clip for easy accessibility and a more secure carry.
Aluminum Handles
Aluminum Handles
A solid, lightweight material that can be molded, textured or anodized to provide better grip under extreme conditions.
4.689 (45 reviews)
4.7 out of 5 stars
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5 out of 5
M Heller
Feb 26, 2015
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
Great all around carry knife!
I use the knife for day-to-day carry as the clip holds the knife secure in my pocket for immediate access. The knife is used for opening of mail, packages, cutting of binding on packages and if necessary immediately available for self defense. A great Ken Onion design for numerous uses and immediate opening on demand.
5 out of 5
Nov 28, 2014
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
Fast and light
This knife is very sharp out the box. No blade play. Fast and smooth flipper action and very light for the size. I love the jimping on the pocket clip it is the small details that count. I highly recommend this knife.
5 out of 5
James A.
Hawthorne, CA
Sep 24, 2014
Pros: Overall Quality, Blade Sharpness, Handle Feel, Weight, Ease of Opening
Cons: None
My First "Flipper"
I bought this knife based on a recommendation from Skallagrim on Youtube. It's the first knife I've owned with this opening mechanism and, I have to say, I really like it! I use it as an EDC. I like the texture of the handle, it's so light you barely notice you're carrying it, the tolerances are very tight, the opening is smooth, the blade came VERY sharp! I actually shaved my face with this knife! It's not as good as a straight razor, but the edge was keen enough to do the job without too much difficulty. THAT genuinely impressed me as most manufacturers don't bother putting a fine edge on a knife - you almost always have to sharpen it, first thing. I greatly appreciated the courtesy. I can't really speak to the quality of the steel, time will tell how good the edge retention is, and I haven't used it enough, yet. Overall, I think it's a great knife. CRKT is fast becoming a favorite manufacturer of mine and I HIGHLY recommend this to anyone looking for a good folding knife.
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