This Tetsujin Hamono Gyuto is a blade-only knife in the nominal 240mm size, with an approximately 231mm cutting edge. Its Ginsan (Silver #3) stainless-steel core is clad in softer stainless steel using San-mai construction. The Ukiba finish creates a distinctive hazy band above the cladding line.

Toru Tamura forges the blade, and Naohito Myojin grinds and sharpens it. The double-bevel, 50/50 geometry is suitable for right- or left-handed use. No handle is included, so the blade must be fitted with a compatible handle before use.

Specifications

Brand: Tetsujin Hamono 鉄人刃物

Blacksmith: Toru Tamura 田村 徹

Sharpener: Naohito Myojin

Knife type: Gyuto

Nominal size: 240mm

Approximate cutting-edge length: 231mm; handmade dimensions can vary

Construction: San-mai

Grind: Double bevel, 50/50

Core steel: Ginsan (Silver #3) stainless steel

Cladding: Soft stainless steel

Approximate hardness: 61 ± 1 HRC

Finish: Ukiba

Approximate blade height: 50mm

Approximate spine thickness: 3mm

Approximate overall length: 390mm

Approximate blade-only weight: 192g

Handle: Not included

Hand orientation: Ambidextrous

Front marking: Japanese kanji for “Tetsujin Made”

Back marking: Japanese kanji for “Ginsan”

Origin: Tosa, Kochi, Japan

About Tetsujin Hamono

Tetsujin Hamono is a collaboration between blacksmith Toru Tamura and sharpener Naohito Myojin. Tamura forges the blades, while Myojin grinds and sharpens them.