Usu-Nomi Japanese Hand Made Paring Chisel By Kiyotada Ⅰ - 30mm

Smith name: Shimamura Chugoro

Steel: White Steel

Blade width: 30mm

Blade thickness: Blade Bottom(about 6.20mm)，Top of Blade（about 3.20mm）

Blade Cross section: Rectangular Kakuuchi style

Manufacture Era: 1960s 

Weight: 189g

Blade Angles: 24°

Total length: 319mm

Neck length: 72mm

Blade length: 92mm

Types of wooden handles：Japanese red oak (Akakashi)

Accessories：—

Additional Information: This is a rare, barely used kaku-uchi usu-nomi (square-profile thin chisel) forged by the first-generation Kiyotada. There was previously surface rust in the ura (back hollow/flat), but it has been removed. Traces of the original forged black scale (kurokawa) remain intact on the front face of the blade. I performed an initial basic sharpening, taking both the bevel and the ura up to #1000 grit. On the stones, the steel feedback closely resembles that of Tsukiichihiro chisels—noticeably harder than second-generation Kiyotada steel—making it suited for working softwoods or medium-density woods.