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  • SOG Specialty Knives & Tools TWI8-CP Twitch II Knife with Straight Edge Assisted Folding 2.65-Inch Steel Blade and Aluminum Handle, Satin Finish
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SOG Specialty Knives & Tools TWI8-CP Twitch II Knife with Straight Edge Assisted Folding 2.65-Inch Steel Blade and Aluminum Handle, Satin Finish

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List Price: $70.00
Price: $38.99 & FREE Shipping. Details
You Save: $31.01 (44%)
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Ships from and sold by Amazon.com. Gift-wrap available.
  • Well priced folding knife with more intricate construction than most in its class
  • Straight edge, 2.65-inch AUS-8 steel folding blade has a drop point shape with a satin finish
  • SOG Assisted Technology provides one hand blade opening
  • Handle is made of anodized aluminum with a graphite finish
  • Comes with a limited lifetime warranty
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146 new from $37.87 2 used from $22.25
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Frequently Bought Together

SOG Specialty Knives & Tools TWI8-CP Twitch II Knife with Straight Edge Assisted Folding 2.65-Inch Steel Blade and Aluminum Handle, Satin Finish + Smith's PP1 Pocket Pal Multifunction Sharpener
Price for both: $48.11

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  • From November 1, 2014, through December 22, 2014, save 15% on select SOG knives and tools shipped and sold on Amazon.com. Here's how (restrictions apply)
  • Buy Used and Save: Buy a Used "SOG Specialty Knives & Tools TWI8-CP Twitch II Kni..." and save 68% off the $70.00 list price. Buy with confidence as the condition of this item and its timely delivery are guaranteed under the "Amazon A-to-z Guarantee". See all Used offers.

Product Information

Technical Details
Part Number TWI8-CP
Item Weight8.8 ounces
Product Dimensions9.8 x 4.6 x 0.8 inches
OriginUSA
Item model numberTWI8-CP
Discontinued by manufacturerYes
Size9.80in. x 4.60in. x 0.75in.
ColorGraphite
Item Package Quantity1
Number Of Pieces1
Number of Handles1
Batteries Included?No
Batteries Required?No
Warranty DescriptionAll SOG products are guaranteed against defects in workmanship and materials for the life of the original purchaser. This guarantee is voided (as determined by SOG) by misuse, abuse, improper maintenance, or alterations of the product and does not cover any normal wear that might occur. All guarantee claims should be sent directly to SOG Specialty Knives, Inc.
  
Additional Information
ASINB0001WC73K
Best Sellers Rank #3,201 in Home Improvement (See top 100)
Shipping Weight8.8 ounces (View shipping rates and policies)
ShippingCurrently, item can be shipped only within the U.S. and to APO/FPO addresses. For APO/FPO shipments, please check with the manufacturer regarding warranty and support issues.
Date First AvailableJune 19, 2003
  
Warranty & Support
Warranty, Parts: Parts
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Product Description

Product Description

The SOG Specialty Knives & Tools TWI8-CP Twitch II is designed with intricate construction and stands out in its class, while still being a smaller, affordable knife that’s ideal for an everyday carry. Made of AUS-8 steel with an attractive satin finish, the 2.65-inch straight edge, folding blade has a drop point shape that sharpens easily and makes quick work of any task. This knife features a pass-through lockbar where the "kick" of the blade sticks through. By pressing on the "kick", you initiate the one hand opening of the blade and SOG Assisted Technology takes over using high-tension coil springs to finish opening and securely locking the open blade in place. The ergonomically contoured and well-balanced handle has a graphite finish and is made of anodized aluminum that will fit comfortably in your hand. A fixed pocket clip is located on the back of the handle that can also double as a money clip. This lightweight folding knife is easy to carry with a closed length of 3.55-inches, overall length of 6.20-inches, blade thickness of 0.1-inches and a weight of 2.60-ounces. The SOG Specialty Knives & Tools TWI8-CP Twitch II Knife with Straight Edge Assisted Folding 2.65-Inch AUS-8 Steel Blade comes with a limited lifetime warranty that protects against defects in manufacturing and materials. Each SOG product is created with the help of company founder and chief engineer, Spencer Frazer. Known for their uncompromising style and performance, these knives and tools showcase innovation, dependability and a unique, futuristic style that has garnered awards and recognition worldwide. SOG products have also won favor among law enforcement, military and industrial customers that rely on their tools to perform flawlessly in the toughest, most adverse conditions.

Amazon.com

Sleek, attractive, and easy to operate, the TWI-8 Twitch II straight bladed knife with aluminum handle showcases SOG's sophisticated style and quality construction. The TWI-8 features a pass-through lock-bar and a blade kick, which you can press to easily open the blade. Also featuring a well-balanced body and a strong, dependable cutting edge, this versatile folding knife makes quick work of any task.


The SOG TWI-8 Twitch II Knife Offers:
  • A satin-finished, AUS8 stainless steel straight blade
  • Patented SOG Assisted Technology for fast, easy opening
  • A strong, reliable blade locking system
  • A hard-anodized 6061-T6 aluminum handle




A reversible clip lets the knife sit securely and discreetly in your pocket. View larger.


S.A.T. propels the blade open for quick, safe, one-handed access. View larger.


The 2.68-inch, heat-treated blade provides you with a versatile, dependable cutting edge. View larger.

SOG Assisted Technology Increases Speed, Safety, and Usability
When you go to unfold the TWI-8's blade, SOG's patented S.A.T. (SOG Assisted Technology) takes over. High-tension coil springs propel the blade open, so you can easily access the TWI-8's blade with just one hand. Additionally, the unique design of S.A.T. knives offers security and peace of mind by incorporating locking mechanisms that are stronger, more reliable, and easier to access than conventional liner locks.

Cryogenic Heat Treatment for a Sharp, Dependable Blade
The TWI-8 offers a full, 2.68-inch, AUS8 stainless steel blade with an attractive satin finish. Because the workhorse of any knife is its cutting surface, SOG's proprietary Cryogenic Heat Treatment process ensures that its blade will stay sharp over the long haul. This intensive process takes more than 48 hours and requires reducing the blade's temperature to less than -300 degrees Fahrenheit, then slowly heating the blade to room temperature. The stress created by this process strengthens the stainless steel at the atomic level and increases the blade's overall durability and edge retention.

Ergonomic, Lightweight Design Ensures Comfortable Use
Even if your blade is sharp, it's hard to make precise cuts if your knife doesn't fit comfortably in your hand. That's why this knife's handle is ergonomically contoured. Crafted from hard-anodized 6061-T6 aluminum, the textured handle is also slip-free and well-balanced.

And at just 2.6 ounces, this folding knife is lightweight and easy to carry. A reversible clip extends from the back of the handle, allowing the knife to sit low in your pocket for the most discreet carry possible. An added bonus, the pocket clip can double as a money clip.

This knife is backed by a lifetime warranty that protects against defects in manufacturing and materials.

About SOG: Strong, Innovative Specialty Tools
SOG originally stood for Studies and Observation Group, an elite joint services military group designed to handle covert operations during the Vietnam War. SOG Specialty Knives & Tools was founded in the spirit of this elite group and became the first knife manufacturer to offer an expanded line that included fixed blades, folding knives, and multipurpose tools.

Each SOG product is created by company Founder and Chief Engineer, Spencer Frazer. Known for their uncompromising style and performance, these knives and tools showcase innovation, dependability, and a unique, futuristic style that has garnered awards and recognition worldwide. SOG products have also won favor among law enforcement, military, and industrial customers that rely on their tools to perform flawlessly in the toughest, most adverse conditions.

What's in the Box
TWI-8 pocket knife with straight edge blade and aluminum handle with money/pocket clip.

Customer Reviews

This little knife is very sharp, beautifully made and designed.
Pablito
I like the quick open action and the fact that this knife has a locking mechanism.
Gshul512
I carry this knife with me eveywher and is perfect for everyday uses.
Cam

Most Helpful Customer Reviews

18 of 18 people found the following review helpful By J. Skilton on September 13, 2007
Compares well with more expensive knives. Solid as a rock, nice thin body made of stacked metal plates and anodized aluminum handles, with high-quality stainless blade. The I and II are good sizes for a gentlemen's knife, and the XL is my 'out on the weekend' knife. The assisted open works very well, it is just strong enough and does not produce a loud attention-getting snap as with some other brands. Nothing wrong with liner-locks, but I prefer the lock-back and the clip on the heel (that's just me), this knife has both. And the 'kick' opener is my favorite - since I don't need my thumb to open the knife, I can keep a better grip on the body with less effort. A winner all around. Buy two.
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9 of 9 people found the following review helpful By SKULLSPLITTER - The CEO on February 16, 2012
Verified Purchase
I'm disappointed.

Just received this and a Spyderco Tenacious today...the latter being GREAT...also expecting a United Cutlery Hibben III Survival Knife any moment...VERY excited about that one, but anyway...here's why I'm disappointed by the Twitch II...

I took her out and pushed the kick...it didn't go all the way up into locking position. I tried it a few more times, to no avail, and came to the conclusion the pivot screw was too tight. Well...before I stuck my allen wrench in, I checked the blade for play...and wouldn't you know, it was NOTICEABLY LOOSE IN EVERY DIRECTION. This pissed me off because I knew it was already pretty tight...the only way I could get the play out was to tighten it to the point where the knife was basically unable to open normally...

Knowing I was already out of luck with this one, I still tried to fix it on my own...tightened it up, a couple of drops of oil, worked the blade back and forth, et cetera...I've now got it where it flicks open like it's supposed to, but the blade remains loose (in both open and closed positions), and that's totally unacceptable to me...so it looks like I'll be sending this one back to SOG, or more likely returning it to Amazon to get my money back...

It's a good looking, little knife...it was sharp enough out the box, and the lock back and safety were fine...but even if it locked as solidly as The Tenacious, this particular knife doesn't really appeal to me like I thought it would...

Regards,
SKULLSPLITTER - The CEO
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9 of 10 people found the following review helpful By Tony L on October 10, 2011
Verified Purchase
When I opened the box that this knife came him, I was pleasantly surprised at its size. This knife is quite small and light, making it a good knife for everyday carry. If you remove the clip and place the knife in your pocket you will forget it is even there. (It comes with a clip, which is also fine if you would rather clip the knife inside of your pocket.) The knife opens easily and quickly.

However, I was not at all happy with the knife. The blade had far too much side to side movement (or "play", if you prefer). In fact, the blade wiggled side to side so much that I took a video of it, uploaded it to a popular video sharing site, and sent an email to SOG asking them if this was normal. In my email I included the url of the video.

Several days later SOG emailed me back stating that they could not watch the video (because they are not allowed to access the popular video sharing site to which I uploaded it) and that if the blade had too much side to side movement I should return it to Amazon. They did not ask me to send it in for repair, exchange, or offer any other course of action rather than returning it to Amazon.

In my opinion, this is terrible customer service from SOG. I returned the knife (thanks Amazon, for having such great customer service) and will not buy any SOG products in the future.
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3 of 3 people found the following review helpful By Hisarrow on February 15, 2011
Verified Purchase
I've had my Twitch II for a about a month now. Like others have said, it has many, many strong points. For example, the blade comes razor sharp. It is the perfect size for an EDC blade. It's an outstanding knife for whittling. Very controllable and cuts through my pine wood like butter. It has both thumb studs and a "flipper" for opening, plus a safety lock.

Now the negatives. The pivot spring is very dicey. The blade was hesitating slightly to open, so I tried to loosen the pivot screw like I've done with many other knives, but it had no effect. I unscrewed the pivot all the way and guess what? There's a wound spring wire underneath that will come flying out at you. Upon examining the pivot I could see how the mechanism looked like it was not fit together properly and had been forced into place. Reassembly was difficult. I was not able to do anything to improve the ease of opening. One other complaint is that the lockback sometimes refuses to disengage. Like another reviewer commented, sometimes it works and sometimes it doesn't. I hate the hassle of sending it back to SOG, but I may have to. They need to improve the problems with this knive's assembly. I have the SOG Aegis, which is a more recent design, and it has many design improvements over the Twitch II. I highly recommend the Aegis for EDC.
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27 of 37 people found the following review helpful By M. Kato on March 8, 2010
Verified Purchase
I bought the SOG Twitch II because it had a flipper blade-opening design with a back lock that I wanted to try out and because it was less than $40 with Amazon's free Super Saver Shipping at the time I ordered it. My early lock blade knives had back locks, such as the Buck Folding Hunter and other models and the subsequent various Kershaw, Gerber, Puma, Coleman, Schrade, Spyderco, and SOG knives that I purchased, with the exception of a Buck Solitaire with a liner lock, a Gerber Bolt Action drop point, a Timberline Timberlite with a Neeley Lock, and a Boker-Matic with assisted closing or retraction. In recent years, I have favored the flipper design for easy one-hand opening (I have found the flippers to be easier to use than most of the thumbstuds I have encountered, although there are some OK thumbstud designs). The flipper opening designs usually have liner locks instead of back locks, especially since the flipper part of the blade sticks out of the back of the knife handle where the back lock usually is. So I was intrigued by the pass-through back lockbar design of the SOG Twitch and I decided to buy the knife to try it out. With my flipper opening knives that have the liner lock, I can release the liner lock with my thumb and, without shifting my grip, start closing the blade with my index finger and, after moving my thumb out of the way, close the blade all the way with my index finger or with my thumb. With the Twitch II, I had to change my grip to release the back lock and I had to initially use my other hand to close the blade.Read more ›
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Most Recent Customer Reviews