Miki Giken Koyasuke Stone Chisel / Hammer — 30mm Blade-less Face, Carbide Tip 6x10x30mm, Oak Handle, Total Length 330mm

OVERVIEW & PRODUCT DESCRIPTION
Achieve heavy-duty natural stone splitting, rough surface dressing, and professional masonry demolition with exceptional durability and traditional craftsmanship using the Miki Giken Koyasuke Stone Hammer (Model #185), featuring a blade-less 30mm face.

Crafted in Miki, Japan—a city renowned for centuries of master blacksmithing—this specialized Koyasuke features a high-grade tungsten carbide cutting edge (6x10x30mm dimensions) embedded into a flat, blade-less 30mm striking face. Mounted on a sturdy, shock-absorbing Japanese oak wood handle (樫柄 - 330mm total length, 120mm head length, 600g heavy-duty head weight), it delivers maximum impact momentum, structural rigidity, and robust striking power for demanding stone-breaking and splitting work.

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

KEY FEATURES & SPECIFICATIONS
- Heavy-Duty Carbide Tip (超硬 6×10×30mm): Equipped with a robust tungsten carbide insert (6x10x30mm) designed to withstand intense impact shock during heavy stone splitting and rough dressing.
- Blade-less Flat Face Design (刃なし 30mm): Features a flat, non-bladed striking surface optimized for powerful stone breaking, chipping, and deep masonry reduction without edge chipping.
- Ergonomic Japanese Oak Wood Handle (柄付き): Fitted with a durable, resilient natural oak handle, providing excellent shock absorption and a secure grip during repetitive heavy striking.
- Heavy-Duty 600g Head & 330mm Reach: Engineered with an overall length of 330mm, a head length of 120mm, and a solid 600g weight (全長330ｍｍ・頭120ｍｍ・重量600ｇ) to deliver maximum impact momentum and deep stone-breaking efficiency.
- Professional Stonemasonry Utility: Ideal for rough stone splitting, stone breaking, masonry demolition, surface leveling, 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: #185 (コヤスケ 刃なし 30ｍｍ 樫柄付)
  - Total Length: 330mm (全長 330ｍｍ)
  - Head Length: 120mm (頭長 120ｍｍ)
  - Face Type: Blade-less flat face (刃なし)
  - Face Width: 30mm (30ｍｍ)
  - Carbide Tip Dimensions: 6 x 10 x 30mm (超硬6×10×30)
  - Head Weight: 600g (重量 600ｇ)
  - Handle Material: Japanese Oak Wood (柄付き)
  - Origin: Made in Japan

IMPORTANT USAGE & CARE GUIDE FOR CARBIDE TOOLS
- Full-Face Strike Alignment: Always ensure the entire striking surface makes flat, precise contact with the stone. Striking at an angle (hitting on points or corners only) will cause the delicate carbide tip to chip.
- 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 high-hardness tools, improper striking angles may cause minor chipping along the edges. This is a normal characteristic of carbide 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.