Miki Giken Tonkachi Zuchi Stone Hammer / Masonry Hammer — 21mm Single Carbide Tip, Total Length 330mm

OVERVIEW & PRODUCT DESCRIPTION
Achieve heavy-duty natural stone shaping, professional masonry trimming, and efficient stone surface reduction with exceptional durability and traditional craftsmanship using the Miki Giken Tonkachi Zuchi Stone Hammer (Model #597), featuring a larger 21mm carbide face.

Crafted in Miki, Japan—a city renowned for centuries of master blacksmithing—this specialized Tonkachi Zuchi hammer features a high-grade tungsten carbide tip expertly brazed onto the striking face (featuring a 21mm square and 21.5mm blade width configuration). Engineered with an extended overall length of 330mm and a heavy-duty head length of 123mm, it delivers maximum striking momentum, balanced control, and precise impact transmission for demanding stone dressing and flattening work.

Whether used for professional landscaping, Japanese garden construction (Nihon Teien), architectural stone masonry, or large flagstone splitting, this authentic Japanese tool delivers uncompromising performance and enduring reliability.

KEY FEATURES & SPECIFICATIONS
- Single-Sided Tungsten Carbide Tip (1ケ付): Equipped with a high-grade tungsten carbide cutting face (21mm square face and 21.5mm blade width) to maximize wear resistance and tool longevity against abrasive hard stone across a larger surface.
- Professional Miki Forging Heritage: Crafted in Miki, Hyogo—Japan's premier capital of edged and masonry tool production—guaranteeing exceptional structural integrity under heavy striking impact.
- Extended 123mm Head & 330mm Reach: Engineered with an overall length of 330mm and an extended head length of 123mm (全長330ｍｍ・頭123ｍｍ・角21・刃幅21.5ｍｍ) to provide maximum striking momentum, reduced fatigue, and powerful impact delivery.
- Professional Stonemasonry Utility: Ideal for heavy stone shaping, stone dressing, surface flattening, masonry joints, and traditional Japanese garden stone construction.
- Handcrafted in Japan: Built with the uncompromising quality expected of traditional Japanese tool makers.

- Specifications:
  - Brand: Miki Giken (三木技研)
  - Model: #597 (トンカチ槌 1ケ付 21ｍｍ)
  - Total Length: 330mm (全長 330ｍｍ)
  - Head Length: 123mm (頭長 123ｍｍ - Extended Heavy-Duty Head)
  - Striking Face Dimensions: 21mm Square / 21.5mm Blade Width (角21・刃幅21.5ｍｍ)
  - Edge Type: Single carbide-tipped masonry hammer (1ケ付 トンカチ槌)
  - Origin: Made in Japan

IMPORTANT USAGE & CARE GUIDE FOR CARBIDE TOOLS
- Full-Surface Strike Alignment: Always ensure the entire striking surface makes flat contact with the stone. Striking at an angle (hitting on points or corners only) will cause the delicate carbide tip to chip.
- Break-In Period: Exercise extreme caution when using a brand-new tool. Gradually break in the sharp edges by slowly rounding them off and allowing the tool to adapt to your workflow during initial use.
- Delicate Nature of Carbide: Carbide products are extremely hard yet brittle and sensitive to impact shock. Please handle with care.
- Note on Chipping: Due to the nature of carbide tools, improper striking angles may cause minor chipping along the edges or corners. This is a normal characteristic of high-hardness striking tools and is not considered a product defect. Chipped edges can easily be repaired and re-sharpened using a diamond grinding stone.
- Storage: Wipe away dust, moisture, and debris immediately after use. Store in a dry location.