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  • Kershaw 1660ST Ken Onion Leek Serrated Folding Knife with SpeedSafe
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Kershaw Ken Onion Leek Folding Knife with Speed Safe

by Kershaw

List Price: $79.86
Price: $38.94 & FREE Shipping. Details
You Save: $40.92 (51%)
In Stock.
Ships from and sold by Amazon.com. Gift-wrap available.
Serrated
  • Elegant serrated knife with SpeedSafe ambidextrous assisted opening system
  • Lets user smoothly and easily deploy the blade with 1 hand, either left or right
  • Ideal for hunting, fishing, or working in situations where 1-handed opening is useful
  • Handle: Bead-blasted stainless-steel; Blade: 14C28N Steel
  • Measure 4 inches when closed; Weighs 3.1 ounces; This item is not for sale in some specific zip codes
109 new from $32.50

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Frequently Bought Together

Kershaw 1660ST Ken Onion Leek Serrated Folding Knife with SpeedSafe + Smith's PP1 Pocket Pal Multifunction Sharpener
Price for both: $46.93

Buy the selected items together


Product Description

Amazon.com

The Leek series includes some of Kershaw's most popular knives, and the K.O. Leek serrated folding knife is no exception. This particular knife features a distinctive design by celebrated knife maker Ken Onion, who created the SpeedSafe ambidextrous assisted opening system. With SpeedSafe, the user can smoothly and easily deploy the blade with one hand, either left or right. This makes it ideal for sporting and work situations in which one-handed opening is easier and safer, such as when hunting, fishing, or working with your hands on the job site. The K.O. Leek also sports a bead-blasted stainless-steel handle, which gives the knife a sleek, cutting-edge look. If the stainless handle isn't your cup of tea, Kershaw also offers Leek knives in a variety of other handle styles, some with technologically advanced coatings for enhanced performance. For example, the red "smoked" double-anodized aluminum handle is a true head turner, while the black tungsten DLC-coated handle produces a non-reflective surface. As an alternative, you can opt for the Pink Leek, with its fashionable pink anodized aluminum handle, or the Rainbow Leek, which boasts a titanium oxide coating that produces a highly scratch-resistant, brilliant rainbow finish.



The SpeedSafe assisted opening system lets you smoothly deploy the blade with 1 hand.
The K.O. Leek also comes with a Kershaw pocket clip, which is meant to be clipped with the handle on the inside of your pocket. The clip is not to be worn on a belt, as this is an unsafe way to carry your belt. Other features include a frame lock, which locks the blade into position after the blade is deployed, and a thumb stud for easier one-handed opening.

About the SpeedSafe System
The patented SpeedSafe knife-opening system helps users open the knife by applying manual pressure to the thumb stud or blade protrusion. The heart of the SpeedSafe system--which is built into many of Kershaw's best-selling knives--is its torsion bar, which keeps gravity from opening the knife. After the blade is out of the handle, the torsion bar moves along its half-moon track and takes over, smoothly opening the blade and locking it into position, ready for use. Although they may look similar at first glance, SpeedSafe knives are not considered switchblades. Unlike a switchblade, SpeedSafe knives do not deploy with the push of a button in the handle or by gravity alone. Instead, the user must manually overcome the torsion bar's resistance, putting the knives outside the federal definition of a switchblade. However, it's the responsibility of the buyer to investigate and comply with the laws and regulations that apply in his or her specific area. Buyers should rest assured, however, that SpeedSafe knives are extremely safe, as they open only when the user manually deploys them, and lock securely into position when open so they don't close accidentally.

Knife Maker Ken Onion
A master of his trade, Ken Onion is one of the most sought-after custom knife makers in the industry. His knives can be found in the most prestigious private knife collections as well in as in the pockets of his dedicated customers. Ken's involvement in the knife trade dates back to his time in Palestine, West Virginia, where he was inspired at the age of 12 by Vernon Ott, a local blacksmith and maker of garden tools and knives. In the ensuing years, Ken joined the U.S. Marine Corps and worked in such fields as construction, heavy equipment repair, and hydraulics repair, always with an eye toward eventually designing the perfect knife. In November of 1991, Ken met Stan Fujisaki, a talented knife maker who agreed to teach him the tricks of the trade. After years of preparation--and some inspiration while working on a Harley cam for a friend--Ken created his first SpeedSafe knife. Today, Ken designs a custom selection of knives for Kershaw, many featuring the patented SpeedSafe torsion bar system for assisted opening. Ken is personally involved throughout the design and manufacturing process to ensure that each knife meets his high standards for performance and quality.

Specifications:

  • Blade material: Sandvik 13C26 stainless steel
  • Handle: 410 stainless steel
  • Blade length: 3 inches
  • Closed length: 4 inches
  • Weight: 3 ounces
  • Warranty: Limited lifetime
  • Item is restricted for shipping to some zip codes

Product Description

Kershaw 1660X Leek Frame

Product Details

  • Product Dimensions: 3.4 x 2 x 0.4 inches
  • Shipping Weight: 0.3 ounces (View shipping rates and policies)
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • ASIN: B004DS1XF6
  • Average Customer Review: 4.6 out of 5 stars  See all reviews (433 customer reviews)
  • Amazon Best Sellers Rank: #1,268 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
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Customer Questions & Answers

Customer Reviews

Speed lock and assisted opening work awesome.
C-DOG
It's razor sharp right out of the box and keeps an edge very well.
JDNY65
It is the perfect size for an everyday carry pocket knife.
John Hasili

Most Helpful Customer Reviews

29 of 32 people found the following review helpful By R. MCCOOL on December 21, 2009
Item Shape: Serrated Verified Purchase
I'm an emergency responder who demands a lot of things from a knife - not just sharpness and strength, but also light weight, rapid one-handed opening, and good balance. Corrosion resistance, a size appropriate for both small and large cutting tasks, and a partially serrated blade to cut rope and seat belts efficiently are all things that I look for in a knife. The Kershaw Leek has all of these features, along with a very high build quality and Kershaw's excellent warranty service. The only weakness this knife has is that after a lot of use the screw that serves as the blade hinge sometimes loosens. It can be tightened easily with a small star bit, though I'm sure that Kershaw would fix the problem if I wanted to send it back to them. Otherwise, it's as close to perfect as any knife I've ever seen (and I'm including some rather expensive custom knives in that comparison). I'd give this knife six stars if I could.
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15 of 15 people found the following review helpful By Blue Collar Outdoors on March 19, 2012
Verified Purchase
I bought this knife recently and for starters, Amazon shipping was 100%. Three days earlier than lowest estimate and in perfect condition. Now to the knife... I absolutely love it. If you aren't looking to read an entire review then take my word and buy this blade. For those of you that care, here we go...

Pros:
1.Razor sharp out of box, and it STAYS that way for a very long time.
2.Looks fantastic, very classy.
3.Size is (in my opinion) plenty large enough for just about anything you expect in EDC, but not so big it scares passerbyers.
4.Speed is the closest I've ever seen to being a switchblade.
5.Pocket clip is solid and adjustable.
6.Very strong frame lock (but still easy to close with one hand).

Cons:
1.Rather annoying how many fingerprints you obtain on the steel scales.
2.Can be slighty slippery in your hand. Both of those cons can be fixed with a slight amount of grip tape or any sticky textured scales (I used the sharp side of velcro and that looks good, provides perfect grip, and if I ever needed to, I could velcro it to something for concealment).
3.As everyone has mentioned... a rather delicate tip (as long as you don't need a knife to pry nails the tip will be fine. Can even be helpful having a thin sharp tip for digging out splinters and such).

Conclusion: Very nice EDC blade. 100% recommended.

Tips:
1.Use a substance with a decent amount of friction to cover the plain scale.
2.The knobs on either side of the blade are NOT thumb studs. They are blade stops. They can be used as thumb studs, but don't blame kershaw for it being uncomfortable, they were never designed as thumb studs. They were only intended to stop the blade when it accelerated to the full open position (so the blade wouldn't apply so much stress on the lock).

Enjoy your knew knife! Comment if you want a video example of something or a better explanation!
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25 of 30 people found the following review helpful By Dr Nick on November 26, 2010
Verified Purchase
Let me start by saying I am very picky when it comes to my pocket knives. This one is awesome in every way. It has the speed assist which is a great option but in addition to the traditional thumb stud it has a spot on the back of the blade which allows you to use your index finger to deploy the blade. The steel keeps an edge very well but is not impossible to sharpen. The size of the knife is also perfect for pocket use. Overall, this is truely a great knife. Don't hesitate on this one. One last thought. It is also made in the USA which means quality. I am so sick of previously great brands (I am refering to you Gerber) sending a large part of their products to be made in China but keeping the price point the same. Chinese knives are just not quality. Some Kershaw knives are also produced over there, but not this knife. One great knife at a great price.
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24 of 29 people found the following review helpful By Emin Kuliyev on February 11, 2011
Verified Purchase
I've decided to post a main review after commenting on one by T. Lawrence, originally posted for this knife in December 2009.

Long story short, it's an excellent knife, well made, sturdy, sharp, and comfortable. The assisted opening is as quick as full auto.

Another reason I'm commenting on it here is wanting to let everyone who's ever purchased it through this link on Amazon know that the smooth blade version with no date marks is made of Sandvik 14C28N. This Swedish steel is even better and newer than Sandvik 13C26, and that's a great news.

Otherwise, here's what Kershaw told me on the blade material as there seems to be some confusion with many people not being certain as to what their Leeks are made of. If a knife has a date stamp of anytime prior to June 2008, then it's 440A, and that's what T. Lawrence's knife seems to be made of, according to pictures he's posted here. Blades made between that date and July 2009 are made of Sandvik 13C26, and the ones made after July 2009 - of Sandvik 14C28N.

*UPDATE* (with an unfortunate lowering of my initial five star rating):

After carrying the Leek periodically for 8 months, I have to take away two stars for the knife's misbehaving. Thumb studs being absolutely useless to me, I always use the trigger to deploy the blade. After a few months, the blade started to open only half way, becoming stuck in unopened position. I quickly realized that to successfully open the knife using its SpeedSafe feature, I had to hold it in a very particular manner - closer to the handle's tip. If my fingers grabbed the handle somewhat higher, closer to the blade, lateral squeezing pressure on the scales was enough to prevent the blade from swinging out open.
Read more ›
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