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Kershaw 1550ST Blackout Partially Serrated Folding Knife

4.7 out of 5 stars 140 customer reviews
| 4 answered questions

Price: $49.99 & FREE Shipping. Details
Only 17 left in stock (more on the way).
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  • Ken Onion has created some of the most innovative designs yet seen at Kershaw or anywhere else for that matter
  • A master custom knife-maker Kershaw is proud to display the Speed Safe knives of The Onion
  • Blackout: Dark as night this Speed Safe fast-opener is a covert must have
  • Great for work, outdoors or everyday carrying
  • Steel: Partially serrated, Sandvik 14C28N stainless steel with DLC coating, Handle: Glass-filled nylon
  • SpeedSafe: Kershaw's patented manual assisted-opening system, Thumb stud
  • Liner lock to prevent knife from closing accidentally, Single position pocket clip, Made in the USA
  • Blade Length: 3 1/4-Inch, Closed Length: 4 1/2-Inch, Overall Length: 7 3/4-Inch, Weight: 3.5-Ounce
$49.99 & FREE Shipping. Details Only 17 left in stock (more on the way). Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

  • Kershaw 1550ST Blackout Partially Serrated Folding Knife
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  • Smith's PP1 Pocket Pal Multifunction Sharpener, Grey
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  • Kershaw 1605CKTST Clash Assisted 3-Inch Blade with Polyimide Handles, Black
Total price: $80.68
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Product Description

Kershaw's 1550ST Blackout Folding Knife features a partially serrated, 14C28N stainless-steel blade for strength and excellent corrosion resistance, and scratch-resistant Tungsten DLC coating for a handsome, non-reflective surface. For a comfortable and stable grip, the Blackout has an extremely durable, contoured handle of glass-filled nylon. A locking liner maintains the blade in a safe and secure position. Made in the USA. Blade Length: 3 1/4-Inch, Closed Length: 4 1/2-Inch, Overall Length: 7 3/4-Inch, Weight: 3.5-Ounce. Since the company's founding in 1974, Kershaw Knives has been dedicated to quality. This has led to a worldwide reputation for performance and innovation in tools and knives. From state-of-the-art manufacturing to advanced materials, customers rely on Kershaw for products that provide "technology with an edge". Today, Kershaw is a wholly-owned subsidiary of Kai Corporation, which has been in business for more than 90 years. Kai Corporation is Japan's premier blade producer.

Product Details

  • Product Dimensions: 1.4 x 1.2 x 4.8 inches
  • Shipping Weight: 0.8 ounces (View shipping rates and policies)
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B0009VC9PE
  • Item model number: 1550ST
  • Average Customer Review: 4.7 out of 5 stars  See all reviews (140 customer reviews)
  • Amazon Best Sellers Rank: #181,017 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
  • Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

Customer Questions & Answers

Customer Reviews

Top Customer Reviews

Verified Purchase
I highly recommend the Ken Onion Kershaw Black Out to anybody looking for their first pocket folding knife, or to somebody looking to step up from a folding utility knife seeking a few more features and higher quality materials/craftmanship.

While I consider this knife to be an entry-level model, given it's price point, the craftsmanship and performance exceed expectations. Those who are accustomed to (or expect the quality of) excellent folding knives from manufacturers such as Emerson, Cold Steel, or Benchmade might not fully appreciate the value of this knife at under $60.

Handle: Polyimide, not G10 or Kydex. I have rather large hands, so it feels a bit small but not so much that it gets lost in my hand. There is little if any flex in the handle which has a metal liner. The knurling is fairly deep and sharp enough to provide very good traction when dry, adequate when wet/greasy. Great with gloves. Includes a lanyard hole which is big points from me. Held in the hand with blade retracted, the backstrap is smooth and rounded making for an excellent loaded fist. Likewise it is just long enough to protrude either side to be used as a tactical impact device in a hammer-fist or modified ridgehand. Probably not intended, but good to know if the chips are down.

Clip: Knife rides tip-down only, which I don't mind. Clip only attaches to one side. What I do like, is 1) the clip is very firm but well contoured and 2) the knife rides very low in the pocket. About as low as it can. That to me is a deal-breaker for a knife. There is some checkering under where the clip meets the handle, which does accelerate wear on your clothing or belt, but it's acceptable and could be modified.
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I carry this knife as my daily use knife. I wear it with dress pants and with jeans, and it does not draw attention to itself. I work in a professional environment where carrying a knife would be looked at askance- but this slips into my pocket and is unobtrusive in a way that a knife with more tools on it would not. It is sleek, black, and subtle. Until I take it out to pop open a box or something like that, no one even notices it.

The speed stub is reversible, which is good for me as a left hander. What is not reversible is the clip- so when I take it out of my pocket, I still have to flip the knife over. That's the only real draw back of this knife. That would move it from four to five stars if they had just drilled holes on the reverse for me to move the clip.

The blade holds a edge, and sharpens up well. The tooth edge I haven't had much use for, but I am glad it is there.
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Verified Purchase
I have had this model knife for about 17 years. I recently lost my old one, found a new one online and ordered it. About a year ago, The thumb stud came off the old one. I sent Kershaw an email asking if I could buy this part for the knife, and they sent me a kit with the thumb stud, pocket clip, and screws for no charge. This knife is sharp enough to shave with right out of the box. After significant use, it is easy to sharpen and holds an edge fantastically well. The spring assisted opening is lightning fast and there is no doubt as to whether it is locked in the open position or not. I use mine every day to strip wire of all sizes, open boxes, cut insulation, etc. (I'm an electrician/HVAC tech) and the knife hold up to all sorts of abuse. All in all, a very well designed knife. Also, the blade blackout NEVER wore off the old knife, nor did it scratch.
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Verified Purchase
This is my second Kershaw Ken Onion knife. I also own the tactical blur. I love the blur and wanted a marginally smaller knife of a similar design. Have to say I'm really disapppointed with the black out. The blade is great, just like my other Kershaw but the handle feels like cheap plastic. The blur feels so much better in my hand that there is no comparison. The pocket clip is reversible on the blur, not so on the black out. The blur also has a thumb stud for opening on both sides of the blade so you can open it with either hand. The black out allows you to place the single thumb stud on either side but then you can only open it with your strong hand. The thumb stud itself has a different feel. The blur has a flat side that allows the thumb maximum leverage. The black out thumb stud is round and is harder to push open.
Do yourself a favor and pass on this knife. Get a tactical blur. Much nicer and I actually paid less for it.
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This is a great knife. The blade deployment action is smooth and lightening fast. A solid pocket knife.
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Verified Purchase
This is just an amazing knife for every day carry. You can easily flip it open and closed with one hand thanks to the spring assist. It holds a good edge. I've only sharpened it a couple times in like 2 years. I use it all the time. The serrations are brutally efficient. They'll strip plastic, bark, wire insulation, whatever...

Be mindful that this is a folder, and obviously not full tang. Treat it like you would treat a folder and you'll be very satisfied.
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Verified Purchase
I have had this knife for several years. It was recently stolen
while at work. When I realized it was gone, I had to have another one just like it. They don't make these anymore (made in the USA), so I was very pleased to find them available here on Amazon .
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