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Description
Experience the pinnacle of Japanese knife-making craftsmanship. The Rockstead RITSU-ZDP (BL) is a masterpiece of precision, combining an ultra-advanced clad steel blade with an ergonomic design, engineered for discerning EDC enthusiasts and high-end knife collectors alike.
Whether you're looking for an incredibly versatile and compact fixed blade for daily carry or a definitive centerpiece for your premium knife collection, the Ritsu-ZDP delivers unparalleled cutting performance and timeless aesthetics.
Key Performance Features
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Unmatched Edge Retention (67 HRc): Featuring Rockstead’s upgraded (2022+) ZDP189 core clad by VG-10 steel, this blade reaches an astonishing hardness of around 67 HRc. It stays razor-sharp exponentially longer than standard tactical or outdoor knives.
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Signature Honzukuri Convex Edge: The dual convex (Honzukuri) blade shape is flawlessly mirror-polished by hand. This legendary grind reduces cutting resistance while maintaining extreme edge strength, ensuring smooth, effortless slices every time.
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Premium Full-Tang Construction: Built for ultimate durability, the full-tang design guarantees structural integrity under demanding use, perfectly balanced by a high-grade titanium guard and backplate.
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Elegant Wood Micarta Handle: The beautifully contoured wood micarta handle offers a warm, natural aesthetic with the weather-resistant toughness of modern composites, ensuring a secure and comfortable grip in any condition.
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Premium Leather & Kydex Hybrid Sheath: This stylishly crafted leather sheath features a form-fitting Kydex interior insert. It provides the classic elegance of premium leather with the secure, click-in retention and blade protection of Kydex.
This leather sheath is putting a kydex on inside. And, it is very stylish workmanship.
Please enjoy the beauty of our completed blade.
This blade material will be changed ZDP189 clad steel in 2022.
ZDP189 Blade Introduction
ZDP-189 is a high-carbon, high-chromium powder metallurgy steel renowned for its extreme hardness, often exceeding 64 HRC, which delivers peerless edge retention and aggressive cutting performance. This performance comes at a cost; its massive carbide volume makes the steel notoriously difficult to sharpen and increases brittleness, posing a risk of chipping under heavy lateral impact. Furthermore, while technically stainless, its high carbon content necessitates diligent maintenance to prevent oxidation, making it a specialized choice for precision cutting tasks rather than rough, heavy-duty utility.
| Full length | 213mm |
|---|---|
| Blade length | 95mm |
| Thickness | 3.7mm |
| Material | ZDP189 Clad by VG-10 |
| Hardness | around 67 HRc |
| Weight | 123g |
Sheath
| Spec | 215x50x25mm |
|---|---|
| Material | leather & kydex |
| Weight | 66g |
Why Choose the Rockstead RITSU?
Rockstead knives are widely regarded as the pinnacle of production fixed blades worldwide. Each knife represents decades of Japanese metallurgical innovation and meticulous hand-finishing. The Ritsu-ZDP is not just a tool; it's an heirloom-quality investment. Add this legendary Japanese fixed blade to your collection today.
Rockstead RITSU FAQ
Q1: How do I sharpen the Rockstead RITSU-ZDP Honzukuri (convex) edge?
A: Because of the unique Honzukuri (dual convex) grind and extreme 67 HRc hardness, you should never use standard sharpening stones or electric sharpeners, which will ruin the mirror finish. Rockstead recommends using their official wood block wrap with a specific type of abrasive paper, or stropping with diamond paste. For a complete restoration, you can send it back to Rockstead Japan for their professional lifetime sharpening service.
Q2: What is the benefit of the upgraded ZDP189 Clad steel on this knife?
A: The Ritsu uses an upgraded (2022+) clad steel composition featuring a ZDP189 core sandwiched between VG-10 stainless steel layers. This gives you the best of both worlds: the ultra-hard ZDP189 core provides legendary edge retention that stays sharp exponentially longer than standard knives, while the outer VG-10 cladding adds crucial toughness and improves flexibility, preventing the blade from being too brittle.
Q3: Is the Rockstead RITSU-ZDP rust-resistant, and how do I maintain it?
A: While ZDP189 and VG-10 are stainless steels, the extremely high carbon content means it still requires care. After use, always wipe the blade clean of moisture, fingerprints, or acidic substances. Apply a thin layer of high-quality knife oil (like Camellia oil or mineral oil) before storing it in its leather sheath to ensure the mirror-polished surface stays flawless and rust-free.
Payment & Security
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Delivery and Shipping
In-stock orders will be shipped in 48 hours except weekend and holidays.
Pre-orders pls subject to the indicated Pre-order shipping dates.
From China warehouse: Estimated delivery in 15–21 business days