Mukomachi-Nomi Japanese Hand Made Mortise Chisel By Toshikuni - 7.5mm

Brand name: Toshikuni(利國)

Smith name: Unknown

Steel: Carbon steel

Blade width: 7.5mm

Blade thickness: Blade Bottom(about 14.50mm)， The blade near the bevel（about 11.70mm）

Manufacture Era: Before 1980

Weight: 170g

Blade Angles: 32°

Total length: 222mm

Neck length:  40mm

Blade length: 68mm

Types of wooden handles：Japanese White Oak（Shirakashi）

Accessories：—

Additional Information: Used condition, sourced from a retired carpenter in the Nagoya area. I have resharpened it, finishing both the bevel and the ura to #1000 grit. During sharpening, the steel performed very well, likely being Shirogami No. 2 (White Paper Steel #2).

Although the maker of this chisel is not known at this time, its craftsmanship has left a deep impression on me. Both sides and the top of the blade have undergone concave processing using a traditional hand tool—the sen—ensuring that the chisel can be easily pulled out even when working in deep mortises.

The fine hand-filed marks left on the neck also offer a glimpse into the blacksmith’s high level of skill. Furthermore, the overall profile and styling of the neck strongly evoke the signature aesthetic of the renowned blacksmith lineage "Sukekuni" (助國).