Approved - knives withdrawn from private collections, checked, overhauled and certified by Coltelleria Collini
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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 - 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 -
Zero Tolerance - Ken Onion Flipper Knife - ZT0200ST - PRIVATE COLLECTION - knife
KNIFE WITHDRAWN FROM PRIVATE COLLECTION
Type: Previously Purchased
Condition: in excellent condition
Available in commerce: NO
Sharpening: Original
Marks on blade: YES - small marks
Marks on handle: NO
Packaging: YES, original box
Checked and Certified by our internal laboratory
Intended use: Tactical/MilitaryType of production: Industrial
Country of production: USA
Blade: In stainless steel 154CM
Blade finish: Tungsten DLC Coating
Handle: G10 with stainless steel liners
Blade length: 101mm.
Blade thickness: 4mm.
Closed length: 132mm.
Total length: 222mm.
Thickness when closed: 21mm.
Weight: 225g.
Closure: Liner Lock
Clip: Removable, reversible and multi-position, in stainless steel
Packaging: -
Notes: Design by Ken Onion - Opening system through Carson Flipper system - Knife out of production, withdrawn from private collection, like new, without boxAP-ZT0200ST -
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









