Genno Hammers, Round Black Head, Double-wedge
Recommended Uses
- Chiseling
- Adjusting and setting hand plane
- Nailing
Features
- Quality Japanese steel
- Comfortable oak handle
- Versatile dual-face design
- Heavy-duty double wedge
- Made in Japan
This round, dual-head genno hammer features a flat striking face and a slightly convex striking face to provide greater versatility. By starting the nail with the flat face and then finishing with the convex face, you can avoid damaging the wood’s surface. It is also an excellent tool for striking Japanese chisels or adjusting and setting a Japanese hand plane.
The comfortable oak handle is secured to the hammer head using a wooden and iron wedge hammered in a cross pattern that keeps the head and handle firmly fixed.
Head Material: Carbon Steel
Handle Material: Oak

Ships within 5 business days.
Product information
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Head weight: 225g (about 7.9 oz)Head Length: 76mmHead Thickness: 23mmOverall Length: 328mm |
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Head weight: 300g (about 10.6 oz)Head Length: 86mmHead Thickness: 29mmOverall Length: 328mm |
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Head weight: 375g (about 13.2 oz)Head Length: 93mmHead Thickness: 31mmOverall Length: 330mm |
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Head weight: 450g (about 19.7oz)Head Length: 97mmHead Thickness: 33mmOverall Length: 330mm |
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Head weight: 570g (about 20.1 oz)Head Length: 103mmHead Thickness: 36mmOverall Length: 330mm |
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Head weight: 670g (about23.6 oz)Head Length: 110mmHead Thickness: 38mmOverall Length: 330mm |
Dual Striking Faces with Distinct Shapes

This hammer features two striking faces: one flat and the other slightly curved.
A traditional genno hammer that performs well in various situations, with a design especially effective for nail driving.
By driving the nail on a flat surface at the beginning and then on a curved surface at the end, you can avoid scratching the material surface.