THAITSUKI Sora Kiritsuke Precision in Stillness. In a world filled with excess, true mastery reveals itself in restraint. The Sora Kiritsuke is a study in balance—where length, geometry, and material converge into a blade that performs with quiet authority. Inspired by traditional Japanese swordsmithing, this Kiritsuke carries forward the philosophy of controlled motion: a single, uninterrupted stroke that defines precision. Its extended 11-inch cutting edge allows for seamless, fluid slicing—particularly suited for sashimi and fine fish preparation where every cut must be clean, intentional, and exact. The distinct K-tip profile enhances control at the tip, while the long, flat edge supports elegant draw cuts with minimal resistance. A visible hamon runs along the blade—formed through differential hardening—marking the boundary between extreme edge hardness and resilient spine. It is not an ornament, but the signature of time, temperature, and discipline. This is not a knife designed for everyone. It is created for those who understand refinement, stillness… and legacy. Specifications General Model: THAITSUKI Sora Kiritsuke Blade Type: Kiritsuke (K-tip precision slicer) Category: Professional / Collector-grade Japanese knife Dimensions Cutting Edge Length: 11” (~280 mm) Blade Length (Heel to Tip): ~11.2” (~285 mm) Handle Length: 6” (~152 mm) Overall Length (Blade + Handle): 17” (~432 mm) Overall Length (With Saya): 17.5” (~445 mm) Blade Construction Steel: High Carbon Steel (1095) Hardness: ~60–61 HRC Heat Treatment: Differentially Hardened Hamon: Visible, naturally formed Grind / Edge Geometry: Precision ground (fine slicing geometry) Spine Thickness: ~3.0 mm at heel (distal taper toward tip) Tip Style: Kiritsuke K-tip Finish & Details Blade Finish: Polished with natural hamon contrast Edge Finish: Razor-sharp, refined for draw slicing Fit & Finish: Clean spine, balanced profile Handle & Mounting Handle Type: Traditional Japanese Wa-handle Material: Hardwood Ergonomics: Lightweight, controlled grip for precision work Balance Point: Slightly forward-balanced (optimized for slicing flow) Saya (Sheath) Included: Yes Material: Matching hardwood Fit: Hand-fitted to blade profile Weight Approximate Weight: 180–220 g (varies slightly due to handmade nature) Performance Profile Primary Use: Sashimi, fish slicing, long draw cuts Cutting Style: Smooth, continuous slicing (not chopping-focused) Strength: Precision, edge retention, controlled glide User Level: Intermediate to professional / collector Why It Stands Apart Extended 11” Blade: Delivers uninterrupted slicing in a single motion Hamon Integrity: A true result of differential hardening—not cosmetic Kiritsuke Geometry: A respected, high-skill blade profile Swordsmith Heritage: Rooted in traditional forging philosophy Minimalist Presence: Designed to command attention without excess Care & Maintenance Hand wash only, dry immediately Avoid cutting hard materials (bones, frozen food) Apply light oil for storage if unused for extended periods Sharpen with whetstone to maintain optimal edge performance Ownership Experience The Sora Kiritsuke is equally at home in motion or at rest. In use, it delivers clean, controlled cuts with minimal effort. At rest, it stands as a statement of discipline and refined taste. This is more than a tool. It is an extension of intention.