The Blade Is In Carbon Steel With Chromium Coating On The Surface Which Gives Greater Smoothness. Sharp And Then Impact Hardened Teeth Require No Further Sharpening. The Handle Is Designed To Maximize The User. Made In Japan. Blade Length 240 Mm. Spare Parts: R340339 Blade 240 Mm, R340340 Blade 300 Mm, R340361 Kit With 2 Screws And 2 Nuts.