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Approved - knives withdrawn from private collections, checked, overhauled and certified by Coltelleria Collini

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6 Items

  1. Zero Tolerance - ZT0100 by Ken Onion - Black DLC CPM-3V & Black G10 - PRIVATE COLLECTION - knife

    KNIFE FROM A PRIVATE COLLECTION
    * Origin: Previously purchased knife from a private collection
    * Condition: 2008 model, overall in excellent condition
    * Commercial Availability: Discontinued
    * Sharpness: Factory-sharpened, could be improved
    * Blade Condition: Minor cosmetic marks on the DLC finish due to age
    * Handle Condition: None
    * Box: -
    * Sheath: Included
    * Manuals, Certificates, and Warranties: -
    * Inspected and Certified by our in-house laboratory

    The Zero Tolerance 0100 is one of the first knives produced by Zero Tolerance, the premium division of Kai USA, which was launched in 2006 to develop professional tools for military personnel, law enforcement, and first responders. The 0100 model was, in fact, one of the first three fixed-blade knives in the original lineup, alongside the 0121 and 0150 models.

    The design bears the unmistakable stylistic signature of Ken Onion, the renowned American designer already responsible for numerous successes at Kershaw. The distinctive “S”-curved blade offers an unusual combination of cutting ability, power, and precision, making the ZT0100 suitable for both tactical applications and the most demanding outdoor use.

    For its construction, Zero Tolerance chose CPM 3V, a steel then considered cutting-edge for its strength and impact resistance, paired with a tungsten DLC coating and three-dimensionally machined G-10 scales. This combination helped solidify the brand’s early reputation as a manufacturer of “overbuilt” knives, designed without compromise for field use.

    Today, the ZT 0100 is a discontinued model particularly prized by collectors, as it is considered one of the knives that helped define the Zero Tolerance brand’s identity in its early years.

     

    Intended Use: Tactical / Sporting / Collectible

    Production Type: Industrial
    Country of Manufacture: USA
    Blade: Full tang, CPM-3V carbon steel
    Blade Finish: Tungsten DLC coating
    Handle: G10
    Blade Length: 146mm.
    Blade thickness: 4.8 mm.
    Overall length: 267 mm.
    Weight: 317 g.
    Sheath: Nylon, belt-mounted, with thermoformed Kydex lining
    Packaging: -
    Notes: Previously purchased knife, from a private collection

    ZT0100-CP
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  2. Zero Tolerance - 0308BLKTS - Tigerstripe CPM-20CV & Titanium - PRIVATE COLLECTION - knife

    KNIFE WITHDRAWN FROM PRIVATE COLLECTION
    * Origin: Withdrawn from a private collection, previously purchased and used
    * Condition: Like new, never used, no packaging
    * Available on the market: Out of production
    * Sharpness: Factory sharp
    * Marks on blade: None
    * Marks on handle: None
    * Box: -
    * Sheath: -
    * Manuals, Certificates, and Warranties: -
    * Checked and certified by our in-house laboratory

     

    Intended use: Sports / Tactical

    Type of production: Industrial
    Country of production: USA
    Blade: CPM-20CV stainless steel
    Blade finish: Tigerstripe black-oxide BlackWash
    Handle: Titanium and G10
    Blade length: 95mm.
    Blade thickness: 4mm.
    Closed length: 132mm.
    Total length: 241mm.
    Weight: 196g.
    Closing system: Frame Lock
    Clip: removable and reversible, stainless steel with Black PVD treatment
    Opening system: Carson Flipper type on KVT ball bearings
    Packaging: cardboard box with Zero Tolerance logos
    Notes: knife previously purchased and used, from a private collection

    ZT-0308BLKTS-CP
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  3. Zero Tolerance - ZT0630 Emerson Clip Point - PRIVATE COLLECTION - knife

    KNIFE WITHDRAWN FROM PRIVATE COLLECTION
    * Origin: Withdrawn from a private collection, previously purchased.
    * Condition: Overall in very good condition, minor marks on clip and hardware.
    * Commercially available: Discontinued
    * Sharpening: Factory sharpened, can be improved.
    * Marks on blade: None
    * Marks on handle: Small marks on clip and hardware.
    * Box: /
    * Scabbard: /
    * Manuals, Certificates and Warranties: / /
    * Checked and Certified by our in-house laboratory


    Intended Use: Tactical/Sporting

    Production Type: Industrial
    Country of Production: USA
    Blade: Stainless steel S35VN
    Blade finish: Satin finish
    Handle: G10 and Titanium stonewashed
    Blade length: 91mm.
    Blade thickness: 3.6mm.
    Length closed: 124mm.
    Total length: 216mm.
    Thickness when closed: 13mm.
    Weight: 178g.
    Closure: Frame Lock
    Clip: Removable and multi-position, stainless steel
    Packaging: not present
    Notes: previously purchased knife from a private collection - made in collaboration with Emerson Knives - Patented Wave opening system

    ZT0630-CP
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  4. Zero Tolerance - Emerson Tanto - Carbon Fiber - ZT0620CF - PRIVATE COLLECTION - knife

    KNIFE WITHDRAWN FROM A PRIVATE COLLECTION

    * Origin: Withdrawn from a private individual, previously purchased
    * Condition: like new
    * Commercially available: no longer in production
    * Sharpening: original
    * Marks on blade: -
    * Marks on handle: -
    * Box: NO
    * Sheath: NO
    * Manuals, Certificates and Guarantees: NO
    * Checked and Certified by our internal laboratory

    Intended use: Tactical/Military

    Type of production: Industrial
    Blade production: USA
    Blade: CTS204P stainless steel
    Blade treatment: -
    Handle: Carbon Fiber and Titanium stonewashed
    Blade length: 91mm.
    Blade thickness: 3.6mm.
    Length closed: 124mm.
    Total length: 216mm.
    Thickness when closed: 13mm.
    Balance: -
    Weight: 178g.
    Closure: Frame Lock
    Clip: Removable and multi-position, in stainless steel
    Sheath: -
    Packaging: cardboard box with Zero Tolerance logos
    Notes: in collaboration with Emerson Knives - Patented Wave opening system

    APZT620CF
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  5. MKM - Hero Knife by T. Rumici - Titanium and Carbon Fiber - PRIVATE COLLECTION - MK HR-CFT - knife

    KNIFE WITHDRAWN FROM PRIVATE COLLECTION
    * Type: previously purchased.
    * Condition: overall in good condition
    * Commercially available 
    * Sharpening: factory sharpened
    * Marks on blade: none
    * Marks on handle: small marks on titanium head.
    * Box: cardboard box with MKM Maniago Knife Makers logos. 
    * Scabbard: synthetic pouch with zipper closure and belt loop.
    * Manuals, Certificates and Warranties: /
    * Checked and Certified by our in-house laboratory

    Intended Use: Sporting

    Type of production: Industrial
    Country of Production: Maniago - Italy
    Blade: stainless steel M390 60/61HRC
    Blade treatment: stonewashed
    Handle: marbled carbon fiber grips, titanium liners and heads
    Blade length: 93mm.
    Blade thickness: 4mm.
    Weight: 170g.
    Length when closed: 130mm.
    Total length: 215mm.
    Closure: Back Lock
    Clip: titanium, removable, deep pocket type
    Sheath: synthetic material pouch with zipper closure and belt loop
    Packaging: cardboard box with MKM Maniago Knife Makers logos 
    Notes: Design by Tommaso Rumici

     

    MK-AP-HR-CFT
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  6. Zero Tolerance - Strider Onion - Tigerstripe Black G10 - ZT0303 - PRIVATE COLLECTION - knife

    Knife from a private collection - Iconic and sought after model designed by Ken Onion and Mick Strider - Out of production and no longer available - Perfect in all, like new, serial 1544, does not have any kind of sign or defect - The knife shows an uncertainty at the tip, on the sharpening, which is slightly different; presumably already produced in this way by ZT - The sharpening is good and shows no signs of wear, presumably the sharpening is the original factory - Accompanied by original Zero Tolerance box, but referred to the model 0301 with green G10 handle - Checked and certified by our internal laboratory

     

    Intended Use: Collection / Tactical / Military

    Production type: Industrial
    Country of Production: USA
    Blade: Steel CPM-S30V
    Blade Finish: Tigerstripe - Tungsten DLC Coating
    Handle: Titanium and G-10 with 3D finish
    Blade Length: 95mm.
    Blade thickness: 4mm.
    Length closed: 133mm.
    Total length: 218mm.
    Thickness when closed: 17mm.
    Weight: 232g.
    Closure: Frame Lock
    Clip: Removable, Multiposition, Stainless Steel
    Package: Cardboard box with Zero Tolerance logos (the box refers to a different model, 0301)
    Notes: Design by Mick Strider and Ken Onion - SpeedSafe opening system - Like new - Retired from prvated collection

    ZT0303-CP
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6 Items

Sports, Outdoor, Tactical, and Collectible Knives: The Collini Selection

For over 50 years, Coltelleria Collini has been a reference point in Italy for the world of specialized cutlery. Since 1968, we have been selecting sports, outdoor, professional, and collectible knives, collaborating exclusively with official brands, historical manufacturers, and master artisans.

In this category, you will find thousands of original knives, chosen for demanding collectors, EDC, outdoor, and bushcraft enthusiasts, as well as professional operators who require reliability, quality materials, and consistent performance over time.

Military & Tactical Knives

Knives designed for heavy-duty and professional use, where robustness and reliability are paramount. We select world-leading brands such as Extrema Ratio, Zero Tolerance, Ka-Bar, and Cold Steel. Fixed and folding blades developed to withstand extreme conditions.

Sports & Outdoor Knives

From trekking to hiking, from bushcraft to everyday carry (EDC). Discover the Italian excellence of Fox Knives and LionSteel, the Nordic solidity of Fallkniven, and great classics like Opinel and Spyderco.

Collectible & Rare Knives

Custom, vintage, limited edition, and discontinued knives. Through our Approved program, we acquire, evaluate, and certify private collections, offering our customers access to rare, display, and investment-grade blades.

Why choose Coltelleria Collini since 1968

We are not just an e-commerce site, but a historic cutlery shop with direct experience on the products we offer. Buying from us guarantees:

  • Certified Originality: we are official dealers for all brands we carry.
  • Real Stock with fast shipping.
  • Qualified Assistance and technical advice before and after sales.

Knives Catalog PDF Want to know more? Download the Knives Catalog for free (PDF)

Knives FAQ

What is the best knife brand?

There is no absolute "best" brand, but specific leaders for each use. For tactical and professional use, Extrema Ratio and Zero Tolerance are top tier. For outdoor and EDC, Fox, LionSteel, Fallkniven, and Spyderco excel.

Is it legal to buy sports knives online?

Yes, buying sports and collectible knives online is generally legal for adults. However, laws regarding carrying and transporting knives in public vary significantly by country. Always check your local regulations.