Komisen-Nomi Japanese Timber Chisel - 15mm

Brand name: Koreyuki(是行)

Smith name: Unknwon

Steel: Carbon Steel

Blade width: 15mm

Blade thickness: Blade Bottom(about 16.00mm)，The blade near the bevel（about 11.40mm）

Manufacture Era: before 1990s (according to collector’s memory)

Weight: 725g

Blade Angles: 30°

Total length: 435mm

Neck length: 185mm

Blade length: 105mm

Types of wooden handles: Japanese white oak (Shirakashi)

Accessories：—

Additional Information: Although this chisel is secondhand, it’s in nice condition and comes from a retired miya-daiku (traditional shrine and temple carpenter) in the Kansai region. I’ve already done the foundational sharpening, bringing both the bevel and the ura up to a 1000-grit finish.

In Japan, this type of chisel is commonly called a komisen nomi, which is specifically designed for cutting deep mortises. It features a tsuba (collar/guard) near the handle; because this chisel can be difficult to extract when working in deep holes, the tsuba is added so you can tap it to easily pull the chisel out.