Sport, Military and Collectible Knives | Coltelleria Collini

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KNIFE WITHDRAWN FROM PRIVATE COLLECTION
* Origin: Withdrawn from a private collection, previously purchased
* 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 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
* 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

Higo is one of the most beloved models for Rockstead Knives fans around the world, and HIGOⅡX, with a custom Dark Matter Gold (DMG) carbon fiber coating and a titanium back layer, is one more step in the pursuit of perfection. The blade is made of ZDP189 super stainless steel and features a unique convexity with gradually reduced angle (30 degrees at the middle and 24 degrees at the tip). The variable blade angle is the result of Rockstead's long quest for superior sharpness and cutting ability.

Blade: ZDP-189 stainless steel at 66.7HRC
Handle: anodized titanium and Dark Matter Gold carbon fiber
Blade length: 89mm.
Blade thickness: 3.2mm.
Total length: 216mm.
Weight: 138g.
Closure: Frame Lock with SKD11 casement at 61HRC
Clip: made of 402J2 steel at 48HRC
Notes: Accompanied by warranty certificate with full technical specifications - Please note that the knife you receive will have a different serial number and production date than the model shown in the photographs.

With the Rockstead brand of Ishida Co. of Sakai, Japan, the best industrial knives currently in production are currently marketed.
Created by Katsumi Kitano, who for over 20 years has been producing quality knives so as to have been awarded the highest recognition among artisan knives in Japan, they are exceptional both in cutting capacity, penetration and hold of the thread and in innovation for the materials used and for construction techniques.

Intended use: Collection / Sports

Type of production: Midtech
Country of production: Sakai - Japan
Blade: in Hitachi YXR7 steel at 64HRC
Blade treatment: Black DLC mirror
Handle: A7075 Duralumin with Hv400 hardness anodizing
Blade length: 70mm.
Blade thickness: 3.3mm.
Length closed: 104mm.
Total length: 176mm.
Thick when closed: 11.4mm.
Weight: 74g.
Opening: through ambidextrous pin
Washers: in steel
Closure: FrameLock with wing in SKD11 at 61HRC
Clip: removable, in 420J2 stainless steel of 1mm. with PVD treatment
Packaging: Wooden box with Rockstead logos, certified with serial number and steel hardness test
Notes: -

Blade: stainless steel ZDP-189 to 67.2HRC
Handle: Duralumin A2024 with anodized surface to HV400
Blade length: 73 mm.
Blade Thickness: 3.5 mm.
Overall length: 176 mm.
Weight: 172 g.
Lock: Frame Lock with a swing in SKD11 61HRC
Clip: Steel 402J2 to 48HRC
Notes: Accompanied by a certificate of guarantee with the technical specifications.

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

With the Rockstead brand of Ishida Co. of Sakai, Japan, the best industrial knives currently in production are currently marketed.

Created by Katsumi Kitano, who for over 20 years has been producing quality knives so as to have been awarded the highest recognition among artisan knives in Japan, they are exceptional both in cutting capacity, penetration and hold of the thread and in innovation for the materials used and for construction techniques.

Intended use: Collection / Sports

Type of production: Midtech
Country of production: Sakai - Japan
Blade: ZDP189 stainless steel hardened to 66.4HRC
Blade treatment: mirror polished
Handle: anodised titanium and carbon fiber
Blade length: 89mm.
Blade thickness: 3mm.
Closed length: 120mm.
Total length: 216mm.
Thick when closed: 15.8mm.
Weight: 133g.
Opening: through ambidextrous pin
Washers: in steel
Closure: FrameLock with wing in SKD11 at 61HRC
Clip: removable, in 420J2 stainless steel with PVD treatment
Packaging: Wooden box with Rockstead logos, certified with serial number and steel hardness test
Notes: Please note that the knife you receive will have a different serial number and production date than the model shown in the photographs.

Con il marchio Rockstead, della Ishida Co. di Sakai, in Giappone, sono attualmente commercializzati i migliori coltelli industriali attualmente in produzione.

Creati da Katsumi Kitano, che da oltre 20 anni produce coltelli di qualità tanto da esser stato insignito del massimo riconoscimento tra i coltellinai artigiani in Giappone, si dimostrano eccezionali sia in capacità di taglio, penetrazione e tenuta del filo sia a livello di innovazione per i materiali utilizzati e per le tecniche costruttive.

Lama: acciaio laminato con guance esterne in VG10 e tagliente in ZDP-189 a 66/67HRC con finitura a specchio
Manicatura: Titanio anodizzato
Lunghezza lama: 105 mm.
Spessore della lama: 3,8 mm.
Lunghezza totale: 190 mm.
Peso: 159g.
Chiusura: Frame Lock con battente in acciaio inox
Clip: Deep pocket, amovibile, in acciaio inox SUS420J2 a 50HRC
Note: Design by Sinkevich - accompagnato da certificato di garanzia con specifiche tecniche dettagliate

Rockstead - Higo-X-IW - Ironwood ZDP-189 - knife

With the brand Rockstead, Ishida Co. in Sakai, Japan, are currently marketed the best industrial knives currently in production.

Created by Katsumi Kitano, who for over 20 years has been producing quality knives so as to have been awarded the highest honor among the artisan knife makers in Japan, proved to be exceptional in cutting capacity, penetration and sealing wire is at the level of innovation for materials and construction techniques.

Blade: ZDP-189 in 66.8HRC
Handle material: stainless steel and wood SUS420J2 Ironwood
Blade length: 90 mm.
Blade Thickness: 3 mm.
Overall length: 215 mm.
Weight: 133g.
Lock: Frame Lock with swing SKD11 to 61HRC
Clip: 402J2 steel at 48HRC
Notes: Accompanied by a certificate of guarantee with the technical specifications.

Blade: Hitachi YXR7 64.8HRC steel with 3micron HPC cover - Hv1800
Handle: Duralumin A2024 with surface anodization at Hv400
Blade length: 90 mm.
Blade thickness: 3.5 mm.
Overall length: 215 mm.
Weight: 100 g.
Closing: Frame Lock with SKD11 to 61HRC
Clip: 402J2 steel to 48HRC
Notes: Accompanied by a certificate of guarantee with technical specifications.

Intended use: Collection / Sports

Type of production: Midtech
Country of production: Sakai - Japan
Blade: ZDP189 stainless steel hardened to 66.4HRC
Blade treatment: mirror polished
Handle: aluminum
Blade length: 90mm.
Blade thickness: 3mm.
Closed length: 120mm.
Total length: 216mm.
Thick when closed: 15.8mm.
Weight: 102g.
Opening: through ambidextrous pin
Washers: in steel
Closure: FrameLock with wing in SKD11 at 61HRC
Clip: removable, in 420J2 stainless steel with PVD treatment
Packaging: Wooden box with Rockstead logos, certified with serial number and steel hardness test
Notes: Serial number # 1039 - Date of production 31 May 2019