Gyokucho
Japanese replaceable-blade saws, dozuki, ryoba, kataba
Japanese woodworking purists consider handmade forged saws (Hishika/Bessho) a step above, taper grinding, differential hardening, finer set. Gyokucho is an excellent industrial saw, not a hand-forged artisan saw.
Philosophy
A saw should cut, not wait at the sharpener's. Gyokucho democratized precision Japanese cutting by making it accessible and practical, without sacrificing quality.
History
Hyogo, 1969. Masaaki Tomasada founds Razorsaw Manufacturing with a simple but revolutionary idea: what if you could change a saw blade instead of resharpening it?
Before Gyokucho, every Japanese carpenter owned three saws. One in use. One at the sharpener. One in reserve. An expensive, constraining system that tied up equipment. The replaceable blade changes everything: when it dulls, you remove it, clip in a new one. Done.
In 1975, the Gyokucho brand (玉鳥, 'jewel bird') is created. The name is poetic for such a pragmatic tool, but this is Japan. Aesthetics never leave function.
Among enthusiasts, Gyokucho and Z-Saw are the two industrial references for Japanese saws. Brian Holcombe, professional woodworker, uses Gyokucho daily and recommends the #372 model (dozuki combination cut). Stan Covington (Covington & Sons) calls them 'excellent tools, sharp, effective, and long-lasting'.
But Covington also details their limits vs handmade forged saws (Hishika): no taper grinding, excessive set, non-differential hardening. Gyokucho is a very high quality industrial saw, not a hand-forged artisan saw. The distinction matters.
For 95% of carpenters, Gyokucho is more than enough. For purists, Hishika (Jiro Bessho) is 'a step above'. But at three times the price.
Gyokucho's signature is blade replacement. Unlike traditional Japanese saws with fixed blades, Gyokucho developed an interchangeable blade system, fast, clean, economical. When the blade wears out, you swap it in 10 seconds. No sharpening, no waste. This industrial pragmatism applied to Japanese tradition is exactly what made Gyokucho a global standard.
Iconic Products
Razorsaw #372 Dozuki
The dozuki combination cut, the model recommended by Brian Holcombe. Fine blade with mixed teeth (rip and crosscut), reinforced spine for rigidity. The ultimate versatile saw. The model you buy first and replace last. If you could only own one Japanese saw, this would be it.
Ryoba 240mm
The double-toothed ryoba, rip cut on one side, crosscut on the other. The traditional Japanese format in replaceable blade version. 240mm is the standard size, neither too big nor too small. Two saws in one. Japanese efficiency summed up in one object.
Flush Cut Saw
The flush cut saw, ultra-flexible blade without spine, for cutting dowels or tenons flush with the surface without scratching the wood. A pure finishing tool. The kind of saw you don't know you need, until the day you use it and wonder how you managed before.