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Home > Every Day Carry Knives > EDC Folding Knives > Ripple - Designed by Ken Onion

Ripple - Designed by Ken Onion

Rated: 4.5/5
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(RippleBlue) Ripple - Designed by Ken Onion
(RippleBlue) Ripple - Designed by Ken Onion
(RippleBlue) Ripple - Designed by Ken Onion
RippleBlue description
Columbia River Knife & Tool® and noted knife designer Ken Onion are proud to introduce their first collaboration together, the Ripple K405 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, and a high satin finish. 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.

The Ripple K405BX 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 K405BXP and S receive an ultramarine 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 K405BXP has a Razor-Sharp cutting edge, while the K405BXS features a combined Razor-Sharp and Triple-Point serrrated cutting edge.

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 in true Ken Onion fashion.


RippleBlue ratings and reviews
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No. of ratings: 8
 4.5/5.0 Stars  
 
 
 
Number of Reviews: 12
  • 2011-11-30
    Rockford, IL
I have had my Ripple since Labor Day 2010. I really like the knife, but the little button in the locking mechanism has now failed for the 2nd time. I do not put any pressure on the blade or the lock when I am using it so i do not understand why the little button in the grip appears to wear away. CRKT was good about exchanging the knife the first time and I have requested a 2nd replacement. Has anyone else had this problem? I would rate this knife 5 stars if I did not have this recurring problem ***CRKT RESPONSE We haven't heard of a recurring issue with this particular mechanism on this model. Please reach out to Customer Service and we will get it taken care of for you. We stand behind all of our products and have one of the finest warranties in the industry. We may need to see this knife since you mentioned this as a unique problem. Would be great if we could check this one out. Thank you for notifying us. CRKT

  • 2011-06-21
    Scottsboro, AL
I purchased a Ripple last week. I was so impressed with this knife I purchased a Ripple 2 today. The Ripple line is one of the best EDC series of knives I have seen. Great job, keep these winning designs coming to us

  • 2011-04-24
    Pace, FL
Haven't had my ripple too long. However it has been a great knife and I love showing it off to good friends. It is definitely the nicest knife I own. It's a little pricy but th color, styling, innovation, and quality have really been great. I rate the knife 4.5 / 5. My reasons for not a full five is a little pricy (not too bad for what you get but still) , and my frame where it locks may need some slight adjustment as one time I don't think it was fully locked, also the sharp edges on the grip are fairly rough when your hand drags over it right. These things I have listed are me being extremely critical and I am rating this based upon a $140 knife (with shipping).

  • 2011-01-03
    Moore, OK
This is an example of Ken Onion at his best I have several of his designs, but so far this is my favorite. My Ripple is about as close to a custom knife that you can get without sticking another zero on at the end of the price tag. It's light, fast, sharp, and comfortable in the hand. The IKBS system makes opening and closing the knife smooth as silk, and the attention to detail is fantsatic. Although it's a completely manually activated knife, the flipper is so smooth that it almost feels like it's assisted. I put my Ripple into my EDC (Every Day Carry) rotation, but found that I probably carry it twice as much as any of my other knives. Way to go Ken Onion and CRKT, this one is a Winner

  • 2010-12-26
    Asheville, NC
Collected knives since about age 7 and can still hear my Dad saying, "Quit playing with that knife, you're going to cut yourself." Wasn't long before the Band-aids were coming out of the cabinet

  • 2010-12-06
    Gilbert, AZ
I recieved my Ripple folding tactical knife and was immediately impressed by the size and feel. The craftsmanship is first rate and the operation deploying the blade is as smooth as glass. The knife is beautifully designed, one of the most attractive knives I own in my collection. Great knife at a great price.

  • 2010-09-23
    Baton Rouge, LA
I choose this knife after researching the best quality and design for a lightwieght edc for the office. I did not want something too bulky or, frankly, too aggressive looking. This knife was perfect. Excellent quality and design for its intended purpose. I would recommend this highly as a gentleman's edc carry.

  • 2010-07-21
    Hillman, MN
I love the Ripple. It is a pleasure to look at and it functions even better than it looks. It is a perfect size as well.

  • 2010-07-21
    Brooksville, FL
Beautiful knife. Easy opening and great to carry.

  • 2010-07-09
    Marquette, MI
This is a great knife. The easiest opening knife I have ever owned. It is so lightweight you hardly know you are carrying it.



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Ripple - Designed by Ken Onion

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Product Specifications
Dimensions
Open Overall Length7.5 inches
Closed Length4.375 inches
Weight2.9 ounces

Blade
Length3.125 inches
Thickness0.1 inches
MaterialAcuto+
Blade-HRC59-60
FinishSatin
GrindHollow
StyleKen Onion Drop Point

Handle
Material420J2

Lock
TypeFrame Lock

Carry
Carry System1 Position Clip

Features
IKBSYes

Product Information
Product Accessories
 
 
DESIGNER CORNER
Ken Onion
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...
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