Approved - knives withdrawn from private collections, checked, overhauled and certified by Coltelleria Collini

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 laboratory

Intended 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 Strider

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

PREVIOUSLY PURCHASED KNIFE, FROM A PRIVATE COLLECTION
* Origin: Acquired from a private seller, previously purchased
* Condition: Overall in excellent condition
* Availability on the market: Hard to find
* Sharpening: Factory-sharpened
* Marks on blade: A few small abrasions visible against the light on the mirror finish
* Marks on handle: None
* Box: Present and complete
* Sheath: /
* Manuals, Certificates, and Warranties: Present
* Inspected and Certified by our in-house laboratory

The Rockstead HIGO II in titanium is not simply a high-end folding knife: it is the ultimate embodiment of Japanese philosophy applied to cutting, where every detail is pushed to the limits of perfection.

The minimalist, flawless titanium handle serves as a counterpoint to a ZDP-189 blade hardened to extreme hardness and finished with an almost unreal mirror polish. The result is not merely aesthetic: it is a living surface, capable of gliding through material with a smoothness and continuity that few knives in the world can offer.

Rockstead’s proprietary convex geometry does more than just cut: it separates, controls, and guides. It is a blade designed for those who recognize the difference between extreme sharpness and true long-term efficiency.

The HIGO II is an object for connoisseurs, where tolerances, treatments, and finishes are not mere technical specifications, but part of a precise language.

Intended use: Collectible / Sport

Production type: Midtech
Country of manufacture: Sakai - Japan
Blade: ZDP-189 stainless steel, hardened to 66.5 HRC
Blade finish: mirror polished
Handle: titanium
Blade length: 90mm.
Blade thickness: 3mm.
Closed length: 120mm.
Total length: 216mm.
Closed thickness: 12.2mm.
Weight: 136g.
Opening mechanism: ambidextrous pivot 
Washers: brass
Closure: FrameLock with SKD11 striker at 61HRC
Clip: removable, 420J2 stainless steel with PVD coating
Packaging: Wooden box with Rockstead logos, certificate with serial number and steel hardness test
Notes: knife from a private collection, previously purchased

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

KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Origin: Withdrawn from a private collection, previously purchased
* Condition: 2022 model in excellent overall condition, a few imperceptible abrasions on the handle and a couple of superficial scratches visible only when held up to the light on the tip of the blade
* Available on the market: Difficult to find
* Sharpness: Factory sharp
* Marks on blade: a couple of superficial scratches visible only when held up to the light on the tip of the blade
* Marks on handle: a few imperceptible abrasions on the handle
* Box: Present and complete
* Sheath: /
* Manuals, Certificates, and Warranties: Present
* Checked and Certified by our in-house laboratory

The Rockstead brand, owned by Ishida Co. of Sakai, Japan, currently markets the best industrial knives currently in production.

Created by Katsumi Kitano, who has been producing high-quality knives for over 20 years and has been awarded the highest recognition among artisan knife makers in Japan, these knives are exceptional in terms of cutting ability, penetration, and edge retention, as well as in terms of innovation in the materials used and construction techniques.

Intended use: Collection / Sports

Type of production: Midtech
Country of production: Sakai - Japan
Blade: ZDP-189 stainless steel at 67.3 HRC
Blade treatment: Mirror polished
Handle: A7075 duralumin with Hv400 hardness anodization
Blade length: 70mm.
Blade thickness: 3.3 mm.
Closed length: 104 mm.
Total length: 176 mm.
Closed thickness: 11.4 mm.
Weight: 74 g.
Closure: FrameLock with SUS420J2 50 HRC latch
Clip: removable, 1mm SUS420J2 stainless steel with PVD treatment
Packaging: Wooden box with Rockstead logos, cardboard outer box, certificate with serial number and steel hardness test
Notes: Serial number 848 - Manufactured in 2022

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

KNIFE WITHDRAWN FROM A PRIVATE COLLECTION
* Type: 2016 knife previously purchased and withdrawn from a private collection
* Condition: Like new, never used, never removed from packaging
* Commercial availability: Difficult to find
* Sharpening: Factory edge
* Blade marks: None
* Handle marks: None
* Box: Present and complete, with outer box
* Sheath: -
* Manuals, Certificates, and Warranty: Present and complete
Inspected and Certified by our internal laboratory

SHIN in Japanese means ‘trust’.

The SHIN is one of the largest folders in the Rockstead catalog and showcases all the typical and characteristic elements of the brand: aluminum handle with a pearl-radiant design, hardened anodization at 400 Vickers, and an insert of high-quality stingray leather (Samekawa).

This is a durable knife with strong cutting capabilities that maintains its edge for a long time. Even when used for rigorous cuts, the blade glides securely thanks to its particular sharpening.

The blade indeed has a HONZUKURI sharpening, convex on both sides, following the tradition of Japanese swords; this makes it both very sharp and sturdy, allowing it to cleanly cut a sheet of paper even after 1000 cuts through a very abrasive and resistant hemp rope.

A faithful companion for life, in which to place the utmost trust.

Blade: laminated stainless steel ZDP189 at 67HRC internally and VG10 at 61.7HRC externally
Handle: samekawa (genuine stingray leather) and aerospace-grade aluminum A6063S with black alumite treatment at 400Hv hardness
Blade length: 95mm.
Blade thickness: 4mm.
Total length: 210mm.
Weight: 145g.
Lock: linerlock type, made of 402J2 steel at 50HRC
Clip: removable, made of 402J2 steel at 50HRC, with black alumite treatment at 400Hv
Notes: complete with warranty certificate and technical specifications

KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Provenance: withdrawn from a private collection, previously purchased.
* Condition: 2011 specimen, overall in very good condition.
* Commercially available: Still in catalog, but difficult to find.
* Sharpening: Factory.
* Marks on blade: None
* Marks on handle: minimal marks given by time.
* Box: Present
* Scabbard: Present
* Manuals, Certificates and Warranties: Present
* Checked and Certified by our in-house laboratory

Intended Use: Collection / Sporting

Production type: Midtech
Country of manufacture: Sakai - Japan
Blade: ZDP189 stainless steel at 66.3 HRC
Blade treatment: mirror polish
Handle: Aluminum A6063S with anodization to Hv400 hardness and genuine Breed leather inserts
Blade length: 82mm.
Blade thickness: 3.7mm.
Length closed: 111mm.
Total length: 189mm.
Thickness when closed: 16.2mm.
Weight: 133g.
Opening: via ambidextrous pin 
Washers: steel
Closure: Sub FrameLock of 2mm. made of SUS402J2 stainless steel at 50HRC
Clip: deep pocket, 1mm. 420J2 stainless steel with PVD treatment
Packaging: wooden box with Rockstead logos, certificate with serial number and steel hardness test
Notes: Specimen number #046 dated 07/13/2011, previously purchased, withdrawn from a private collection

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 laboratory

Intended 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 PDT

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

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

KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Origin: Withdrawn from a private collection, previously purchased.
* Condition: In excellent, like-new condition
* Commercially available: Still in production
* Sharpening: Factory sharpened
* Marks on blade: None
* Marks on handle: None
* Box: Present
* Scabbard: /
* Manuals, Certificates and Warranties: Present
* Checked and Certified by our in-house laboratory

Intended Use: Collection / Sporting

Production type: Midtech
Country of manufacture: Sakai - Japan
Blade: Hitachi YXR7 steel at 64 HRC
Blade treatment: Black Hard Anodized at Hv400 hardness
Handle: Duraluminum A7075 with anodized to Hv400 hardness
Blade length: 70mm.
Blade thickness: 3.3mm.
Length closed: 104mm.
Total length: 176mm.
Thickness when closed: 11.4mm.
Weight: 74g.
Opening: via ambidextrous pin 
Washers: steel
Closure: FrameLock with clapper made of SKD11 at 61HRC
Clip: removable, 1mm 420J2 stainless steel with PVD treatment
Packaging: Wooden box with Rockstead logos, certificate with serial number and steel hardness test
Notes: serial number 338 - Production date 20/03/2019

KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Provenance: withdrawn from a private collection, previously purchased.
* Condition: in excellent, like-new condition
* Commercially available: In production
* Sharpening: Factory
* Marks on blade: None
* Marks on handle: None
* Box: Present
* Scabbard: /
* Manuals, Certificates and Warranties: Present
* Checked and Certified by our in-house laboratory

Intended Use: Collection / Sporting

Production type: Midtech
Country of manufacture: Sakai - Japan
Blade: stainless steel ZDP-189 at 66.6 HRC
Blade finish: mirror polish
Handle: Duraluminum A7075 with anodization to Hv400 hardness and Samekawa insert (genuine Breed leather)
Blade length: 95mm.
Blade thickness: 4mm.
Total length: 210mm.
Weight: 145g.
Opening: via ambidextrous pivot 
Washers: steel
Closure: FrameLock with hinge made of 420J2 at 52HRC
Clip: removable, 1mm 420J2 stainless steel with PVD treatment
Packaging: Wooden box with Rockstead logos, certificate with serial number and steel hardness test
Notes: serial number 054 - Date of manufacture 23/04/2019

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

Intended Use: Collection / Sporting

Production type: Midtech
Country of manufacture: Sakai - Japan
Blade: Hitachi YXR7 steel at 64.7 HRC
Blade treatment: Black Titanium mirror coat
Handle: Duraluminum A7075 with anodizing to Hv400 hardness
Blade length: 70mm.
Blade thickness: 3.3mm.
Length closed: 104mm.
Total length: 176mm.
Thickness when closed: 11.4mm.
Weight: 74g.
Opening: via ambidextrous pin 
Washers: steel
Closure: FrameLock with clapper made of SKD11 at 61HRC
Clip: removable, 1mm 420J2 stainless steel with PVD treatment
Packaging: Wooden box with Rockstead logos, certificate with serial number and steel hardness test
Notes: serial number 014 - Production date October 9, 2009

KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Type: Previously Purchased
* Condition: In very good condition
* Commercially available Discontinued
* Sharpening: Factory
* Marks on blade: -
* Marks on handle: - -
* Box: marketed in silk pouch.
* Scabbard: Leather, belt, original, with a few small marks given by time.
* Manuals, Certificates and Warranties: present.
* Checked and Certified by our in-house laboratory



The HIGO-MH-DLC folder features a 3.5-inch YXR7 blade with DLC coating and Micarta handle. The incredible mirror finish is achieved by heat treating the blade and gradually grinding by hand with wet and dry sandpaper of 400, 600, 800, 1,200 and 2,000. The HIGO-MH-DLC comes with a black leather belt case with a slot to hold the included torx wrench.

Country of manufacture: Japan
Type of manufacture: midtech
Blade: DLT571 steel (Hitachi YXR7 at 64.1HRC with 3micron HPC coating and hardness of Hv1300)
Handle: 2mm stainless steel sus402J2 at 52HRC with micarta handles
Blade length: 90mm.
Blade thickness: 3.5mm.
Total length: 216mm.
Weight: 139g.
Closure: Liner Lock
Clip: stainless steel
Notes: Serial number 303 - 2010 knife accompanied by warranty certificate with technical specifications - Model discontinued and no longer commercially available

KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Type: Previously Purchased
* Condition: Like new
* Commercially available Discontinued
* Sharpening: Factory
* Marks on blade: None
* Marks on handle: None
* Box: Present
* Scabbard: -
* Manuals, Certificates and Warranties: Present
* Checked and Certified by our in-house laboratory.


The best industrial knives currently in production are marketed under the Rockstead brand. Created by Katsumi Kitano, who has been making quality knives for more than 20 years to the extent that he has been awarded the highest distinction among artisan knife makers in Japan, they prove to be exceptional both in cutting ability, penetration and edge-holding and in the level of innovation for the materials used and construction techniques.

Country of production: Japan
Type of production: midtech
Blade: Hitachi YXR7 steel at 64.8HRC with 3micron HPC coverage and hardness of Hv1800
Handle: Duralumin A2024 with surface anodizing and hardness of Hv400
Blade length: 90mm.
Blade thickness: 3.5mm.
Total length: 215mm.
Weight: 130g.
Closure: Frame Lock with SKD11 casement at 61HRC
Clip: made of 402J2 steel at 48HRC
Notes: Serial number 005 - 2010 knife accompanied by warranty certificate with technical specifications - Model discontinued and no longer commercially available

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 Collini

Intended 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 bearings

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