Tadachika Double-Edged Koshi Nata Hatchet — 210mm, Yasugi Aogami Blue Steel

OVERVIEW & PRODUCT DESCRIPTION
Unleash maximum chopping momentum, legendary sharpness, and heavy-duty durability with the Tadachika Double-Edged Koshi Nata Hatchet (Model #437), featuring a massive 210mm blade.

Handcrafted in Tosa, Kochi Prefecture—a region renowned for centuries of master blacksmithing—this professional-grade hatchet features a robust 210mm double-edged blade (両刃) forged from premium Yasugi Aogami Blue Steel (安来鋼青紙). Aogami Blue Steel is highly prized among professional woodsmen and craftsmen for its superior edge retention, toughness, and ability to maintain a razor-sharp cutting edge through rigorous daily workloads. 

Whether used for professional forestry work, heavy log splitting, land clearing, or demanding outdoor bushcraft survival, this authentic Japanese utility hatchet delivers uncompromising performance, extended leverage, and enduring reliability.

KEY FEATURES & SPECIFICATIONS
- Premium Yasugi Aogami Blue Steel Core (安来鋼青紙): Forged from high-grade Japanese carbon steel renowned for exceptional hardness, wear resistance, and long-lasting sharpness.
- Heavy-Duty 210mm Double-Edged Blade (両刃 210mm): Symmetrical double-edged geometry with an extended 210mm blade length ensures maximum chopping force, straight cuts, and balanced utility for both right- and left-handed users.
- Traditional Tosa Forging Heritage (土佐の鉈): Crafted using generations of master blacksmith techniques in Tosa, Kochi, guaranteeing superior structural integrity under heavy impact.
- Heavy-Duty Field & Forestry Utility: Ideal for professional forestry, heavy log splitting, land clearing, bushcraft survival, and rigorous outdoor wood-cutting applications.
- Handcrafted in Japan: Built with the uncompromising quality expected of traditional Japanese edged tool makers.

- Specifications:
  - Brand: Tadachika (忠親)
  - Model: #437 (腰ナタ 210mm 両刃 安来鋼青紙)
  - Blade Length: 210mm (刃渡り 210mm)
  - Edge Type: Double-edged / Ryoba (両刃)
  - Steel Type: Yasugi Aogami Blue Paper Steel / High-Carbon Steel (安来鋼青紙)
  - Origin: Made in Japan

HOW TO CARE FOR STEEL
Wipe away moisture, dirt, and plant sap immediately after use. Apply a light coat of camellia oil or mineral oil to the high-carbon steel blade to prevent rust, and store in a dry location.