Thread: Japanese natural whetstone Nakayama red Nashiji ~ What do the specs mean?

Curious if anyone here knows what these stats mean?
Can you tell what grit it is etc?

[Max size] 85*140*22mm (25.4mm=1inch)
[Net Wt.] 552g ;approx. equal to 1 2/9lb (454g=1lb)
Hardness/Grit per hardness/Abrasive pow./Lightness of touch (H1=softest ,H5=hardest)
HGAL=4/max/max/max ...Honyama stones born in central Kyoto city are known as the highest class plates

Thanks for any insite

The rest of this thread has been moved for mod discussion, as it went way off course

Please keep in mind that SRP has a policy against "Vendor Bashing" so temper you answers accordingly...