For 40 years, this company has sold superior quality cutting tools in Japan. Now their “Professional Series” knives are available here. These superb tools are made from a high carbon, stain resistant steel forged to 60 Rockwell (a hardness rating that assures edge sharpness and good re-sharpening quality). Forged bolsters and riveted water repellant wood handles are joined by hand. These knives are extremely sharp.