Z-Saw Ryoba 250mm/9.84" Double Edge Saw for Ripping and Crosscutting S-250
This Ryoba saw is the most versatile of the Japanese saws and convenient for both cross and rip cutting. It comes with two sets of teeth - one for rip cuts and one for crosscuts.
- Overall length: 600mm/23.62"
- Blade length: 250mm/9.84"
- Blade thickness: 0.5mm/0.019"
- Kerf: 0.7mm/0.027"
- Blade depth: 82,5mm/3,25"
- Maximum depth of cut: unlimited
- Pitch/TPI: Rip: 3.1mm/9 TPI, Crosscut: 1.4mm/18 TPI
- Handle: Traditional rattan cane wrapped wood handle
- Replacement blade sold separately: 30201
The primary difference between Japanese saws and western-style saws is that Japanese saws cut on the pull stroke. Pulling a saw blade through wood keeps the blade in constant tension preventing the blade from bowing allowing the blade to be much thinner. Thinner blades cut faster with less effort, make less sawdust and produce a much finer cut. Japanese saws have less set (offset of the teeth) providing much better control when following a line. Japanese saw teeth are impulse hardened greatly prolonging the life of the saw. Impulse hardening heats the cutting edge of each tooth via electrical current hardening just the surface of the tooth leaving the core flexible and less susceptible to breaking. Impulse hardened teeth will remain sharp much longer than conventional western handsaws. Most Japanese saws cannot be sharpened, but replacement blades are available. Japanese saw blades receive a special micro-thin electroplated surface treatment that minimizes friction, reduces tarnishing and rusting and increasing durability.
Japanese saws come in 3 main types:
Dozuki: In Japanese Dozuki means “attached trunk” and refers to the stiff rib or spline that supports the blade. Blades on these saws are super thin and can be as thin as 0.3 mm or 0.011”. These saws are designed for crosscutting and can produce very precise and smooth cuts. These saws have backs or splines to keep the super thin blade in tension. These saws are the easiest to control, but the spline limits the overall depth of cut.
Ryoba: The Japanese word Ryoba means “double or both edge”. These saws have teeth on both sides of the blade. One side has coarse teeth and is designed for ripping while the other side has finer teeth and is designed for crosscutting. These saws have thicker blades, are much sturdier and allow deep cuts.
Kataba: In Japanese Kataba means “single edge”. These saws have teeth on just one side of the blade and do not have backs or splines. These saws can have teeth specifically designed for ripping, crosscutting or angle cutting. These saws have thicker blades and no backs or splines, so they excel at making deep and long cuts.
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