





Our 570g is sold out and likely not arriving until late 2026. The remaining 225g is one of my personal favourites however, on the lighter side but enough weight for Chisel work and Kanna prep. My most used size.
- Traditional Japanese Hammer (Genno / Gennou)
- Hammer Type: Silver Finish Square Gennou
- Hammer Weight: 225g | 570g
- Overall Length: 330mm | 365mm
- Head Length: 76mm | 104mm
- Timber Handle
- Crafted in Japan

Japanese Woodworking Tools | Gennou (Hammers)
Gennou (or Genno) are a specialist style of Japanese hammer. These hammers are an extremely well balanced tool, made with a unique steel that helps absorb impact of a hammer strike. They are made to be used with Nomi (Japanese chisels) and Kanna (Japanese woodworking planes), along with performing precision hammering tasks like driving small nails in tight or awkward locations. Most traditional Japanese hammers have one face flat, with the opposing side a slight convex, to help perform different tasks more accurately.