Ryoba Razorsaw #605 – Gyokucho

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Gyokucho is a popular brand of professional carpentry saws in Japan. They use a method called impulse hardening to increase the durability of the tooth tips. The cutting edge is heated for 0.003~0.005 seconds by applying an electrical current, instantly hardening the surface of the steel while maintaining the flexibility inside. As a result, the saw’s wear resistance increases. The hardened saw tooth is much harder than sharpening files so the blade cannot be sharpened and needs to be replaced once it is dull.

Replacement blades are available and interchangeable.

This ryoba saw works well for cutting general lumber. Double sided, one side having cross-cut teeth and the other rip teeth. Saw handle is made of wood wrapped with cane.
TPI= Cross cut:17, Rip cut:8