Sotomaru nomi Japanese Incannel Gouge Chisel Set By Tomoyatsu

Brand name: Higashi Tomoyatsu (東・友奴)

Smith name: Ishida Tomiyoshi （Infer from the production accuracy and processing traces）

Steel: White Steel

Blade width: 30mm, 18mm, 12mm

Manufacture Era: Before 1990 (according to carpenter‘s memory)

Blade thickness(Blade Bottom/Top of Blade): 

30mm(about 8.2mm/6.4mm）

18mm(about 7.3mm/5.1mm）

12mm(about 6.0mm/4.0mm）

Blade Angles: 24°

Total length: 205mm

Neck length: 45mm

Blade length: 50mm

Types of wooden handles: Japanese white oak

Weight(24/18/12/9/6mm): 152g/117g/77g

Accessories：—

Additional Information: Used. I did a repair sharpening, bevel to 400 grit, ura to 1000 grit.  

These chisels come from a retired "Miyadaiku"( Japanese shrine and temple carpenters) in Tokyo.