Koumaru-Tsuki-Nomi Japanese Hand Made Paring Dovetail Chisels - 15&24mm

Smith name: Unknown (Probably a chisel blacksmith from the Sanjo area)

Steel: Carbon Steel

Blade width: 24mm & 15mm

Blade thickness:

24mm: Blade Bottom(about 10.7mm)，Top of Blade（about 7.5mm）

15mm: Blade Bottom(about 8.8mm)，Top of Blade（about 5.8mm）

Manufacture Era: before 2000 (according to collector’s memory)

Weight: 312g, 245g

Blade Angles: 24°

Total length: 375mm; 390mm

Neck length: 60mm; 60mm

Blade length: 60mm; 80mm

Handle length: 125mm

Types of wooden handles: Ebony

Accessories：—

Additional Information: Used, in good condition. I did a repair sharpening, bevel to 400 grit, ura to 5000 grit. 

Koumaru-type chisel, which is a special type of Shinogi chisel. Although I don't know the blacksmith information of these two chisels, it seems to me that they are made even better than similar chisels made by Kiyohisa.

References:

https://x.com/tsuchidahamono/status/1931137973300716022