GYOKUCHO RAZORSAW Blue Hard Ryoba Replacement Blade 240 mm No. S650
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SUMMARY
A Fresh Cutting Edge. Keep the Saw You Know.
Renew your Blue Hard No. 650 with the matching Japanese-made S650 replacement blade. This standard 240 mm model combines a 0.5 mm blade thickness with a 1.7 mm crosscut tooth pitch for woodworking in dry timber. Separate ripcut and crosscut edges let you cut along and across the grain with the same saw. Replace the blade when a fresh cutting edge is needed and keep using your existing handle.
Replacement blade only. Handle not included. Designed for the Blue Hard No. 650. Choose by model number, not blade length alone: S651 is the fine-tooth replacement for No. 651, despite sharing the same 240 mm blade length.
Shop the complete No. 650 Ryoba saw
APPLICATIONS & MATERIALS
Applications: Woodworking, wood crafts, bamboo crafts, carpentry, furniture making, and carving.
Suitable materials: Dry wood, particleboard, OSB, decking timber, bamboo, and laminated wood.
SPECIFICATIONS
| Model | S650 — replacement blade |
|---|---|
| Matching saw | Blue Hard No. 650 |
| Blade length | 240 mm |
| Blade thickness | 0.5 mm |
| Crosscut pitch | 1.7 mm |
| Ripcut pitch | 3.8–2.4 mm |
| Approx. kerf | 0.83 mm |
| Blade material | Carbon tool steel |
| Tooth treatment | Impact hardening |
| Blade finish | Electroless nickel plating |
| Handle | Not included |
| Country of origin: | Japan |
COMPARE BLUE HARD REPLACEMENT BLADES
You are viewing the S650 replacement blade. Compare the blade specifications below, then select the replacement that matches your saw model. S-prefixed numbers identify replacement blades, not complete saws. Complete-saw weights are not replacement-blade weights and are not listed here.
240 mm Models — Standard or Fine Teeth?
| Spec. | S650 Standard Current product |
S651 Fine Teeth |
|---|---|---|
| Saw model | 650 | 651 |
| Length (mm) | 240 | 240 |
| Thickness (mm) | 0.5 | 0.45 |
| Crosscut pitch (mm) | 1.7 | 1.3 |
| Approx. kerf (mm) | 0.83 | 0.73 |
| Country of origin: | Japan | Japan |
Other Blade Lengths — 210 mm / 270 mm
| Spec. | S649 | S655 |
|---|---|---|
| Saw model | 649 | 655 |
| Length (mm) | 210 | 270 |
| Thickness (mm) | 0.45 | 0.6 |
| Crosscut pitch (mm) | 1.5 | 2.5 |
| Approx. kerf (mm) | 0.72 | 0.94 |
| Country of origin: | Japan | Japan |
ABOUT GYOKUCHO RAZORSAW
GYOKUCHO RAZORSAW brings together Japanese saw-making expertise and practical replaceable-blade design. Its roots lie in Miki, Hyogo, a town with a long metalworking tradition, where saw craftsman Masaaki Tomosada established Razorsaw Manufacturing in 1969.
The brand places quality at the heart of its work, carefully producing each blade under strict quality control. Its in-house-developed impact-hardening equipment treats blades individually to create hard, durable cutting teeth while retaining the flexibility needed in the blade. For users, replaceable blades mean a fresh cutting edge without replacing the complete saw.
Browse the GYOKUCHO RAZORSAW Collection to explore more Japanese saws and matching replacement blades.