Approved - knives withdrawn from private collections, checked, overhauled and certified by Coltelleria Collini
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Zero Tolerance - Strider Fixed - Tungsten DLC CPM-S30V & OD Green G10 - PRIVATE COLLECTION - ZT0121 - knife
PREVIOUSLY PURCHASED KNIFE, FROM A PRIVATE COLLECTION
* Origin: Acquired from a private seller, previously purchased
* Condition: In excellent mechanical condition - good cosmetic condition
* Commercially available: Discontinued
* Sharpening: Professionally resharpened
* Marks on blade: Several signs of oxidation on the blade and minor abrasions, which do not compromise its practical use
* Marks on handle: None
* Box: Missing
* Sheath: In excellent condition
* Manuals, Certificates, and Warranties: None
* Inspected and certified by our in-house laboratoryIntended Use: Tactical
Manufacturing Type: Industrial
Country of Manufacture: USA
Blade: Full tang, CPM-S30V steel
Blade Finish: Tungsten DLC
Handle: G-10 with 3D machining
Blade length: 105 mm.
Blade thickness: 4.5 mm.
Overall length: 205 mm.
Balance: 1.5 cm rearward
Weight: 264 g.
Sheath: thermoformed Kydex
Notes: designed by Mick StriderZT0121-CP -
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 laboratoryThe 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 collectionZT0100-CP -
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 laboratoryIntended 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 collectionZT-0308BLKTS-CP -
Ka-Bar - BK72 Knife - CPM S35VN - PRIVATE COLLECTION - Becker Combat Utility - Knife
KNIFE FROM A PRIVATE COLLECTION
* Type: Previously purchased knife from a private collection
* Condition: Like new
* Availability: Rare and hard to find
* Sharpening: Factory edge
* Blade marks: None
* Handle marks: None
* Box: Original
* Sheath: In excellent, complete condition
* Manuals, Certificates & Warranty: Ka-Bar
Inspected and certified by our in-house laboratoryThe KA-BAR BK72 represents the ultimate evolution of a survival knife icon. As the heir to the famous Becker BK2/BK22, it retains their toughness and reliability while enhancing performance thanks to the premium CPM S35VN steel. Built full tang with a 6.35 mm thick blade, it offers outstanding strength and optimal handling.
The black micarta handle ensures a firm grip in any condition, while the available finishes — stonewashed or black DLC coating — provide a modern and functional aesthetic. A knife that combines durability, precision, and style, perfect for outdoor, survival, and professional use.
Intended use: survival / outdoor / heavy-duty
Production type: exclusive Knivesandtools edition (KA-BAR–Knivesandtools collaboration)
Country of origin: USA
Blade: CPM S35VN steel (full tang, 6.35 mm thick)
Blade finish: stonewashed (KABK72) or black DLC coating (KABK72BK)
Handle: black micarta
Blade length: approx. 13.2 cm
Blade thickness: 6.35 mm
Closed length: 107 mm
Overall length: approx. 270 mm
Closed thickness: estimated between 12–15 mm
Weight: approx. 435 g
Locking mechanism: fixed blade, no locking system
Clip: none (includes kydex sheath)
Packaging: original box
Notes: hardness approx. 58 HRCAP-KB-BK72 -
G. Sakai - Bird and Trout by Masao Takahasi - 5002 - PRIVATE COLLECTION - knife
WITHDRAWN FROM PRIVATE COLLECTION
* Origin: Acquired from a private owner, previously purchased
* Condition: Good condition, marks on the blade from rotation during opening/closing in the handle and light scratches on the stainless steel bolster
* Availability: Out of production, marketed around the 1990s
* Sharpening: Factory edge
* Blade marks: Visible marks from rotation during opening/closing
* Handle marks: Light scratches on the stainless steel bolster
* Box: -
* Sheath: Leather, good condition
* Manuals, Certificates, Warranty: -
* Checked and certified by our in-house laboratory1990s vintage gentleman's knife, produced in Japan by the historic company G. SAKAI, with a long tradition in knife-making. Founded in 1958 as "Sakai Hamono", it has its roots in Seki City, Gifu Prefecture, a region famous in Japan for producing knives and swords for over 700 years.
Quality and innovation: The company was known for combining Japanese craftsmanship with advanced technologies. It produced a wide range of knives, from hunting and bushcraft knives to kitchen knives, and was internationally recognized for its high overall quality and excellent sharpening.
G. Sakai collaborated with many knife brands worldwide and also produced licensed knives for other companies.
Intended use: Gentleman / EDC
Production type: Industrial
Blade: ATS34 stainless steel
Blade finish: Satin
Country of manufacture: Japan
Handle: Wood and stainless steel
Blade length: 75 mm (cutting edge 68 mm)
Blade thickness: 3 mm
Closed length: 107 mm
Total length: 180 mm
Weight: 64 g (114 g with sheath)
Locking mechanism: Back Lock
Clip: -
Packaging: -
Notes: Knife from a private collection, previously purchasedSAKAI-CP -
Zero Tolerance - Strider Onion Folder - CPM-MagnaCut - SPRINT RUN - PRIVATE COLLECTION - ZT0350OLTS
Knife withdrawn from a private collection
- Origin: Withdrawn from a private owner, previously purchased and used
- Condition: Like new
- Availability: Discontinued
- Factory edge: Yes
- Blade marks: None
- Handle marks: None
- Box: Not included
- Sheath: Not included
- Manuals, Certificates, and Warranties: Not included
- Inspected and certified by our internal laboratory
One of our first ZT models and still one of the most popular, now offered in a limited edition with a CPM-MagnaCut steel blade.
The 0350 is a large and aggressive knife, yet compact and light enough to make it a practical and highly effective EDC. It features ZT's assisted opening system: the blade deploys quickly and easily, even with gloves, thanks to the ambidextrous flipper. The blade is finished with a bold and distinctive tiger-stripe pattern created with tungsten DLC coating.
Intended use: Tactical / Military
- Production type: Industrial
- Country of origin: USA
- Blade material: CPM-MagnaCut steel
- Blade finish: Tungsten DLC Coating
- Handle: G-10
- Blade length: 90mm
- Blade thickness: 3mm
- Closed length: 115mm
- Overall length: 195mm
- Closed thickness: 13mm
- Weight: 162g
- Locking mechanism: Liner Lock
- Clip: Removable, multi-position, stainless steel
- Packaging: Not included
- Notes: Sprint Run edition with CPM-MagnaCut steel - Design by Mick Strider and Ken Onion - SpeedSafe opening system
AP-ZT0350OLTS -
Ka-Bar - 1217 - Full Set 1991 50th Pearl Harbour Anniversary Model 02-1241 - PRIVATE COLLECTION - knife
Ka-Bar - 1217 - Full Set 1991 50th Pearl Harbour Anniversary Model 02-1241 - PRIVATE COLLECTION - knife
KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Provenance: withdrawn from a private collection, previously purchased.
* Condition: Like new, never taken out of its box.
* Commercially available: Discontinued, 1991 model
* Sharpening: Factory.
* Marks on blade: /
* Marks on handle: /
* Box: Present, original, with “50th Anniversary Pearl Harbor” logos.
* Scabbard: Present
* Manuals, Certificates and Warranties: Present, complete set.
* Checked and Certified by our in-house laboratoryThis Ka-Bar 1217, made in 1991, is a commemorative knife designed to mark the 50th anniversary of the Japanese attack on Pearl Harbor on December 7, 1941. This surprise attack, conducted by the Imperial Japanese Navy, aimed to destroy the U.S. Pacific Fleet and prevent a rapid response to Japanese expansion. The raid claimed the lives of about 2,400 people, including military personnel and civilians, and led the United States to enter World War II, declaring war on Japan the following day.
The Ka-Bar 1217, with its high-carbon steel blade and leather ring handle, has the same design as the legendary Ka-Bar knife used by U.S. soldiers during the conflict. The blade is engraved with the 50th anniversary logo and a symbolic image of Pearl Harbor, making the knife a collector's item and a tribute to the historical memory of the event. The Ka-Bar 1217 is not just a tool but a mark of honor and respect for the victims of the attack and the heroes who contributed to the victory of the United States during World War II.
Unlike the standard models, here we have engraving from the right side of the blade, hand-molded leather washers with an aged look, and even the scabbard is made like the 1940s models, with darker leather and steel staple points in addition to the traditional contrasting cream-colored stitching.
Intended Use: Tactical/Military
Blade: 1095 56/58HRC carbon steel
Handle: hand-molded leather rings with aged appearance
Blade length: 180mm.
Blade thickness: 4mm.
Total length: 290mm.
Balance: set back - 1cm. from the lower guard branch
Weight: 305g.
Sheath: leather, with contrasting stitching and steel staple points
Notes: very rare 1991 commemorative edition for the 50th anniversary of the attack on Pearl HarborKB-02-1241-CP -
Ka-Bar - Desert Storm U.S. Army Fighting Knife - 9151 - PRIVATE COLLECTION - knife
USED KNIFE, WITHDRAWN FROM PRIVATE COLLECTION
* Type: Knife previously purchased, from a private collection
* Condition: Like new
* Available on the market: Out of production
* Sharpening: Factory edge
* Blade marks: None
* Handle marks: None
* Box: Present and in excellent condition
* Sheath: Present and like new
* Manuals, Certificates, and Warranties: Present
* Checked and Certified by our internal laboratoryAt 2:38 in the morning on the night between January 16 and 17, 1991, just 18 hours and 38 minutes after the expiration of the ultimatum set by the United Nations, Operation "Desert Storm," the largest allied military action since 1945, began.
In what would become the first conflict in history to be broadcast live on television, 90,000 tons of bombs would be dropped, marking a new point of no return for what was considered acceptable by global public opinion. The imagery that war helped create would lay the groundwork for the long series of Western military interventions in the Middle East in the years that followed.
Intended use: Tactical/Military
Country of production: USA
Blade: 1095 carbon steel 56/58HRC
Handle: Leather rings
Blade length: 180mm.
Blade thickness: 4mm.
Total length: 305mm.
Balance: Set back - 1 cm from the lower guard
Weight: 305g.
Sheath: Leather
Notes: Commemorative edition from the 2000s, out of production and no longer availableKB-9151-CP -
PDT - Zero Tolerance - ZT0006 - CPM-3V & OD Green G10 - PRIVATE COLLECTION by Floriano - knife
Exclusive product created in collaboration with the PDT YouTube channel - The Cutthroat's Park. This unique knife was actually used in a field test that you can view directly in this product sheet.
To make it even more special, we engraved Floriano's autograph and the PDT logo on the blade. The box of the knife was also autographed by Floriano making it a must-have collector's item.
KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Provenance: Floriano of the PDT Parchetto del Tagliagole.
* Condition: Overall in good condition.
* Commercially available: Still in catalog.
* Sharpening: Factory sharpened, stropped by Floriano after use.
* Marks on blade: Signs of concrete use on blade finish.
* Marks on handle: None
* Box: Present
* Scabbard: Present
* Manuals, Certificates and Warranties: /
* Checked and Certified by our in-house laboratoryIntended Use: Sporting
Production Type: Industrial
Country of Production: USA
Blade: full tang in CPM-3V steel
Blade treatment: Microbead blasting and Cerakote
Handle: G10 with stainless steel guard
Blade length: 152mm.
Blade thickness: 4.8mm.
Total length: 272mm.
Handle thickness: 17.8mm.
Weight: 292g.
Sheath: kydex
Packaging: cardboard box with ZT logos.
Notes: knife used in a YouTube video review by Floriano of PDTPDT-ZT0006-CP -
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/SportingProduction 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 systemZT0630-CP -
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 laboratoryIntended 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 systemAPZT620CF -
Zero Tolerance - Sinkevich knife Flipper Titanium - ZT0456 - PRIVATE COLLECTION - knife
KNIFE WITHDRAWAL FROM A PRIVATE COLLECTION
* Type: Previously purchased
* Condition: in like new condition
* Commercially available: discontinued
* Sharpening: factory sharpening
* Marks on blade: no marks
* Marks on the handle: no marks
* Box: original ZT box
* Manuals, Certificates and Warranties: -
* Checked and certified by our internal laboratory Coltelleria ColliniIntended use: Sports / Collection
Type of production: Industrial
Production Lama: USA
Blade: CTS-204P stainless steel
Blade treatment: stone washed and satin finish
Handle: Titanium with anodized spacers
Blade length: 87mm.
Blade thickness: 4mm.
Closed length: 112mm.
Total length: 193mm.
Thick when closed: 14mm.
Weight: 178g.
Closure: Framelock
Clip: Removable, reversible, in stainless steel
Packaging: cardboard box with Zero Tolerance logos
Notes: Design by Dmirty Sinkevich - KVT opening on ball bearingsAP-ZT0456-2 -
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 collectionZT0303-CP -
We Knife Co. - Framelock Flipper knife Dual Tone Gray - PRIVATE COLLECTION - 605E - knife
Knife withdrawn from a private collection - Model discontinued by WE KNIFE - Like new condition, with original packaging - Checked, certified by our internal laboratory Collini Cutlery
Intended use: Sports / Collection
Type of production: Industrial
Country of production: China
Blade: CPM-S35VN 59 / 61HRC stainless steel
Blade treatment: dual tone, satin & black PVD
Handle: 6AL4V titanium machined with numerical control
Blade length: 77mm.
Blade thickness: 4mm.
Length closed: 101mm.
Total length: 178mm.
Weight: 114g.
Closing: Framelock
Clip: 6AL4V titanium
Packaging: cardboard box with We Knife Co. logos
Notes: Carson Flipper opening system on ceramic ball bearingsWK-605E-CP





















