Founded in 1969 by Mr. Masaaki Tomasada, Razorsaw Manufacturing Co. the first company intoduced traditional japanese saws based on replaceable blade concept. Since in 1975 Gyokucho 玉鳥 ( /Gioku:tcho/  "Ball Bird") has logo inspired from the first name of founder of company and the kingfisher bird as symbol of pefrect accuracy. Today Gyokucho Razorsaw offer widest selection of premium  japanese woodworking saws with unique easily dismountable and transportable design, patented sophisticated impulse hardening technique, Non-Stick and Anti-Rust nickel plated surface. Razor-sharp well balanced blade manufactured with latest japanese technologies and exigent perfection of Miki-City masters since 15th century.

Gyokucho Ryoba BLUE HARD is a new version of very popular SEIUN SAKU Ryoba. With narrow blade, lighter body, redesigned balance BLUE HARD Double Edge Ryoba deservedly considered the best choice RYOBA by professionals and youtube reviewer's over the world; KOMAME Extra Fine Teeth designed for precision cabinet making and surfboard manufacturers. All Double Edge blades are interchangeable