Tadachika Double-Edged Koshi Nata Hatchet — 180mm, Yasugi Aogami Blue Steel

OVERVIEW & PRODUCT DESCRIPTION
Experience enhanced chopping momentum, legendary sharpness, and rugged durability with the Tadachika Double-Edged Koshi Nata Hatchet (Model #435), featuring a versatile 180mm blade.

Handcrafted in Tosa, Kochi Prefecture—a region renowned for centuries of master blacksmithing—this professional-grade hatchet features a 180mm 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 use. 

Whether used for forestry work, heavy garden pruning, kindling preparation, or outdoor bushcraft survival, this authentic Japanese utility hatchet delivers uncompromising performance, extended reach, 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.
- Versatile 180mm Double-Edged Blade (両刃 180mm): Symmetrical double-edged geometry with an extended 180mm blade length ensures powerful chops, 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.
- Versatile Field & Bushcraft Utility: Ideal for branch trimming, limbing, heavy kindling splitting, gardening, camping, and general outdoor wood-clearing applications.
- Handcrafted in Japan: Built with the uncompromising quality expected of traditional Japanese edged tool makers.

- Specifications:
  - Brand: Tadachika (忠親)
  - Model: #435 (腰ナタ 180mm 両刃 安来鋼青紙)
  - Blade Length: 180mm (刃渡り 180mm)
  - 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.