top of page

A classic mizu water blue tomae fron the Ozuku mine. This stone is very hard although it makes a very nice platform for Mikawa naguar, tomo nagura or a diamond plate generated slurry. I found the best way to use it, after a 5 or 8k synthetic is to run about 30 passes on a tomonagura slurry and then add one layer of Kapton tape on the spine and add an additional five or six weight of the razor stones. These land right on the edge of the edge and it can kick up the edge to 15k or higher.

A very handsome stone it has a faint cloudy or foggy pattern. There are not inclusions for cracks although at both extreme ends of the top surface the sediment lays slightly bias.

Free shipping within the USA

Hardness 5+

Fineness 5+

Cutting speed 4- to 4+ with tomo, 5- with diamond plate surry

Price $380

Weight 675gm


I test all of my stones with Henckelso Friodur unless otherwise stated. 

Your results may vary depending upon your skill or type of steel.

Full money back guarantee minus the return shipping within if within 30 days.

#620 Ozuku very hard mizu tomae razor stone

Excluding Sales Tax
  • JapanStones is a mom and pop company. We only want happy customers, and with this in mind please read the following.


    I offer a full 30 day money back guarantee minus the return shipping for all of my stones unless a stone is noted as an "As Is Stone" within the Product Description. These so called As Is Stones are pre-priced at a discount as a flawed stone.


    I Alex Gilmore the seller, will accept the return of any stone, and will refund for any stone without question although be for-warned that for "As Is" stones there will be a "restocking fee" equal to but not above the actual initial shipping cost (the cost which I incurred) will be deducted from the refund. The average shipping cost is $8 for domestic, $35 for international  USPS Small Flat Rate Box.


    All shipping from California to the purchaser within the USA is Free unless other wise noted within the below policy details.

    All smaller stones (equal to or less than 170x75x15mm wide) are shipped USPS International for Free.


    Larger and expensive stones are shipped Free Shipping by Medium Flat Rate USPS within the USA.


    Larger and Expensive stones shipped International are by FedEx International - with a cost sharing plan of 50/50 between buyer and seller.

    Please check with Alex on any and all issues if in doubt before purchasing.

bottom of page