Ajikataya hatchets are produced by Hinoura Hamono. These hatchets are awesome and I can’t say enough good things about them. 

Azuma hatchets are mainly used to spit wood. It’s a bit like a small axe.  

Detailed Spec

Brand: Ajikataya 味方屋
Smith: Hinoura Blacksmith 日野浦刃物
Producing Area: Sanjo-Niigata/ Japan
Size: 135mm
Steel Type: Carbon Steel
Steel: Yasuki White (Shirogami) #2, Soft Iron Clad
Handle: Oak
Hand Orientation: Ambidextrous
Come with Edge Guard
Total Length: 420mm
Edge Length: 136mm
Handle to Tip Length: 146mm
Blade Height: 62mm
Thickness: 6.4mm
Handle Length: 272mm
Weight: 673g