Gyokucho TPE Blue Hard Ryoba Saw

£31.10 - £41.80
SKU:
30066BH
Type:
Ryoba
Type:
Blue Hard
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Bluehard blades are designed for precise and careful work, they have a slightly shallower angle on the toothline making them less aggressive than a standard ryoba and the sawplate is heat treated to be a little stiffer.

Model No. 665 666

667
Fine tooth

668
Blade Length 210mm 240mm 240mm 270mm
Blade Depth 70 - 87mm 65 - 83mm 65 - 83mm  79 - 96mm 
Overall Length 530mm 560mm 560mm 645mm
Blade Thickness 0.45mm 0.5mm 0.45mm 0.6mm
Pitch CC

1.5mm

16.9tpi

1.7mm

14.9tpi

1.3mm

19.5tpi

2.5mm

10.2tpi

Pitch Rip

 3.7-2.5mm  

 6.9-10.2tpi 

 3.8-2.4mm 

 6.7-10.6tpi 

 3.8-2.4mm 

 6.7-10.6tpi 

 5.6-3.8mm 

4.5-6.7tpi 

Set per Side 0.125mmm 0.125mm 0.125mm 0.125mm
Max Depth

Replacement Blade  

S649

S650

S651

S655

Accepts Blades

S650, S651, S655

S649, S651, S655

S649, S650, S610

S649, S650, S651

 

 

 

 

 

 

 

 

 

 

 

 

 

Gyokucho razorsaws, the original replaceable blade Japanese saws, have long been renowned for their cutting efficiency and excellent durability. The latest generation of Gyokucho saws have blue handles made from TPE (thermoplastic elastomer) a remarkable material that is simultaneously hard and resilient yet feels velvety to the touch and affords a superb grip.

The blades of Gyokucho saws are treated using a process called electroless nickel plating, this has three functions. Firstly, it protects the blade against corrosion, secondly it provides a nice shiny mirror surface so you can gauge your cutting angles, and thirdly its low friction properties inhibit resins and sap from building up on the blade - anything that does manage to get stuck to them can easily be washed off with warm soapy water. The teeth are differentially impulse hardened, one by one, bringing the outer surfaces to RC68 or more whilst still leaving the 'root' of the tooth soft and therefore much less prone to fracture - not unlike tiny Japanese sword blades. They are equally happy working in softwoods or temperate hard woods and can, with care and a light touch, be used on exotic timbers too.

Ryoba are double edged saws (Ryo = Two, Ba = Edge). They have different tooth patterns on either side of the blade, usually one for ripping and the other for crosscutting.

Here's an interesting video by David Walton, YouTube's Unplugged Woodworker, on Ryoba Saw basics using a Gyokucho TPE saw.