Twitch II - Partially Serrated - Clam Pack / TWI98-CP

Satin / Drop Point / Partially Serrated

  • SOG Assisted Technology
  • Lifetime Warranty
Blade Shape Drop Point
Great all around blade shape, good for most outdoor and hunting tasks. Blade Shape
Blade Steel Type 420
Handle Material Anodized Aluminum 6061-T6
Machined aluminum with a hard-anodized coating. Lightweight and durable. Blade Handle Material
Handle Color Graphite
Locking Mechanism Lockback
A basic lock that uses a lockbar with spring tension to hold the blade in the open position. Blade Locking Mechanism
Edge Type Partially Serrated
Offers the benefits of both straight and serrated edges in one blade. Blade Edge Type


From its patented pass-through lock bar design to the assisted opening technology, the SOG Twitch series is the next generation of the classic lockback design. Invented by Spencer Frazer, the Twitch is a 21st century lock back featuring modern construction and technology on the simple, but time-tested lockback folder.

read more

Product Type Folding Knife
Finish Satin
Blade Shape Drop Point
Edge Type Partially Serrated
Blade Steel Type 420
Hardness Rc. 57-58
Overall Length 6.20"
Closed Length 3.55"
Product Weight 2.60 oz
Blade Length 2.65"
Blade Thickness 0.1"
Show Complete Specifications

Implement with SOG Assisted Technology (S.A.T. ™), the Twitch is extremely quick to open with either hand using the double thumb studs or kick on the back. Its full metal construction is durable and sturdy. The clip can be used for low-carry or securing dollar bills and cards. Incorporated into the design is versatile safety lock that helps insure the blade will not open while being carried or close unexpectedly while in use. The SOG Twitch series is a great EDC with a variety of options to choose from.

Download User Guide

Download the Twitch product information brochure, including maintenance instructions, warranty information, component lists, and included accessories (if applicable).

Twitch User Guide Size: (159.08 KB)

Full Spec

Full Specifications

US Standard | Metric

Overall Length 6.20" Closed Length 3.55"
Product Weight 2.60 oz Blade Length 2.65"
Blade Thickness 0.1" UPC 7-29857-99544-3
Product Type Folding Knife Country of Origin Assembled in
the USA
Locking Mechanism Lockback Opening Mechanism Assisted
Belt Clip Type Fixed Packaging Unibox - Display Ready
Engravable Yes Finish Satin
Edge Type Partially Serrated Blade Steel Type 420
Blade Shape Drop Point Handle Material Anodized Aluminum 6061-T6
Handle Color Graphite Hardness Rc. 57-58


    SOG Assisted Technology

    SOG Assisted Technology

    SOG Assisted Technology (S.A.T.) works through the balance of opposing high-tension coil springs. As you initiate the opening action, the force propelling your blade open becomes greater than the force keeping it closed. The result is a blade that springs open instantly once it is engaged, seemingly on its own.


Customer Ratings & Reviews

Twitch II - Partially Serrated - Clam Pack is rated 4.6338 out of 5 by 71.
Rated 5 out of 5 by from Sunday Go To Meeting Knife I purchased my Sunday SOG two years ago and carry it when I am dressed a little nicer than work jeans. This little knife fits in your front pocket so easily and can be pulled out, use and put back with one hand. The blade comes open by just dragging your finger over the nub. This is the same knife I gave my father for Christmas last year. If I give it to my dad, that says it all.
Date published: 2015-11-16
Rated 5 out of 5 by from Perfect Pocket knife I have owned this knife for many years and use it daily on the farm. It is well constructed, sharpens to a razor edge with ease, and the partially serrated blade is a real asset. The assisted opening works really well and free's up your other hand. I own quite a few pocket knives, but this one is my everyday carry and gets the most use. Great Knife.
Date published: 2015-11-14
Rated 5 out of 5 by from Best Knife I purchased my Twitch several years ago. I have carried it everyday and it has not let me down once. It is an excellent knife.
Date published: 2015-11-13
Rated 5 out of 5 by from Superb Blade This is the first SOG knife I have purchased and I am beyond impressed. The blade holds an edge like few others I've owed. The spring assist is strong and the lock is secure. I am very happy and will love to expand my collection!
Date published: 2015-11-13
Rated 5 out of 5 by from Working knife I bought my first Twitch eight years ago. You couldn't catch me without it, the clip keeps it secure in my pocket. I use it daily to skin wire and cut insulation. Wear it out? I just don't believe you can. But alas I have left them at the job and the finder has the best worker's knife out there. Every working man should own one.
Date published: 2015-10-26
Rated 5 out of 5 by from Great Blade and features I bought this knife a few years ago. It was my first SOG. Now I own three including the Flash II and a Seal Pup. This knife taught me SOG is an excellent knife company. The AUS-6 stays sharp, it has a straight blade, lockable open and closed and assisted opening two way, with a thumb knob on the blade and a super fast lever on the backside. It is and engineering miracle!
Date published: 2015-10-26
Rated 5 out of 5 by from The twitch 11 is a good quality knife It is lite and the blade stays sharp a long time. And it also is easy to sharpen. I have other SOG products and am well pleased. I have had my twitch 11 about 10 mounths
Date published: 2015-10-26
Rated 5 out of 5 by from Great knife that I NEVER leave the house without! I've had this knife for well over 2 years now and I use it 10-30 times a day everyday. I haven't had a single issue and I know I've put it through probably more than I should have but its still going. I'm used to buying a new knife every 6-18 months and I don't see myself looking for another knife anytime soon!! The weight and size is also perfect, it doesn't take up my whole pocket or weigh me down, balance is still perfect, clip still tight, locking/folding mechanism still works great and not a spot of corrosion anywhere on it, and it's been left in some situations that other knives would have to be thrown away after. Honestly I bought this knife thinking it would just be used once in a while, it has 100% become my number one tool of choice. Thanks SOG, I'll be a customer/fan for life!! Oh and because of this knife I have 5 other SOG knives and last Christmas have out 8 of the Twitch II for presents.
Date published: 2015-10-26
  • 2015-11-27T07:09CST
  • bvseo_cps, prod_bvrr, vn_cps_3.1.6
  • cp_1, bvpage1
  • co_hasreviews, tv_0, tr_71
  • loc_en_US, sid_TWI98-CP, PRD, sort_mostRecent
  • clientName_sog



    SOG Warranty Information

    All 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 or tear that might occur. Using your SOG folding blade or fixed blade knife for any purpose other than cutting or puncturing is considered abuse and may void your warranty.

    Back to top

    Guarantee Claims

    All guarantee claims should be directed to the factory. U.S. claims should be sent prepaid and insured. For international claims: call, write, or email SOG's Warranty Dept. for information.

    We are not responsible for lost or stolen packages that do not arrive to our facility.

    SOG reserves the right to the repair or replacement of a product at our discretion. Products that are discontinued and not repairable will be replaced with a gift certificate of the last MSRP value, as determined by SOG, which can be used for a future purchase.

    Back to top

    Examples of Non-Warranted Items

    Rusted/spotted/stained blades or handles (coated or not), broken or bent knife tips, worn tool components, dull/chipped knife blades, scratched blade/tool coatings, worn/loose Kraton slabs, sheaths and pouches (if brand new sheaths are determined to be defective they are replaced separately from the knife/tool), and broken/lost thumb studs.

    Back to top

    SOG Unconditional Pocket Clip Warranty

    Pocket clips can be broken if they are accidentally caught on foreign objects while wearing. To help prevent such occurrences, SOG recommends that you wear your knife in your front pocket, with the knife inside your pocket. If, for whatever reason, your clip bends or breaks and you would like to receive a replacement, fill out the Clip Request Form, or email/call SOG's warranty department. Damage to a knife handle because a clip has snagged is not considered "normal," and any such damage will be assessed under warranty. Learn more about replacing pocket clips in Knife & Tool Care.

    Back to top


    SOG offers a sharpening service for our products at the minimal charge of $12.00

    Back to top

    Broken Blades

    In the unlikely case that your knife blade breaks, we will do a hardness test on it to see if it is within specs and therefore eligible for replacement.

    Back to top


    SOG will pre-determine the cost of repair or replacement of non-warranted items and communicate the estimated cost to the customer before any work is performed.

    Back to top

    Returning a product for replacement

    Include a brief note inside your package stating what you are returning, the claimed defect and how it failed. Also, include inside the package, your name, address, daytime phone number and email address to reach you in case we have any questions.

    If the item has sentimental value, please state that in the note. In some cases, items are replaced.

    Back to top

    Warranty claim address & contact information

    SOG Specialty Knives, LLC.
    Attn: Warranty Dept.
    6521 212th St SW
    Lynnwood, WA 98036

    For any other questions, either call, fax, or email SOG’S warranty department at

    Phone: 425-771-6230
    Toll Free: 1-888-40-KNIFE (405-6433)
    Fax: 425-771-7689
    Email: warranty[at]

    Back to top
You may also like