Japanese hatchet and axe heads are normally made with a 3-layer laminated steel head (Warikomi): there is a hard steel insert of carbon steel in the middle for the cutting edge and two softer iron laminations to support it and form the rest of the head. The forest hatchet and the splitting axe are made of unlaminated steel.
Japanese Hatchets and Axes
Mizuno Craft Axe Mini - Shokunin Store
KAKURI: JAPANESE NATA HATCHET
Masakari carpenter's hatchet, Shirogami steel, Niwaki
Mizuno Seisakujo 450g Japanese Warikomi Axe (360mm Burned Oak
Ajikataya Japan 210mm Old Style Hatchet (Single Bevel) – ProTooling
Kanetsune Seki Japan KB-158 Danro White Oak Hatchet Axe - Kanetsune USA
Hatchets Kanenori
Precision Asian Axes : Japanese Axes by Best Made
Japanese Axes & Hatchets
Outdoor Hatchet – Honmamon-Japan
Senkichi Axes & Hatchets for sale
KAKURI Japanese NATA Tool Knife 6.5 Made in Japan, Bushcraft Hatchet Axe with Sheath for Camping, Outdoor, Campfire, Gardening : Patio, Lawn & Garden