Will this stone work on a 9260 spring steel katana of high rockwell hardness? I've been using paper abrasives of silicone carbide but no dice.

I have used this stone for finish sharpening on my shop tools and, my blue #2 steel kitchen knives. These have an HRC of about 60-62 and works quite well. So , I would say that this stone would work nicely on the 9260 blade. Just an FYI, the CERAX 1000 is also a good stone and I use that to do the bulk of my sharpening before hitting it with the 5000 stone.

is this stone a soaker stone? or splash and go?

It is a soaking stone not a splash and go. But is a very nice smooth and fast stone for 5k. Takes 5 to 15 minutes to active the stone in water.

Is this the authentic stone?

Hello This Suehiro Rika is synthetic whetstone produced by Suehiro Best regards

Will this sharpen powdered steel at a Rockwell 65-66?

I have used it to sharpen a chef knife with hap40 steel which I believe was at 65hrc with no issues never tried pm steels yet though hope that helps.

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Suehiro Grit #5000 'Rika 5000-DN Without Base' Finishing Whetstone

Product ID: 345285831

Details

Brand
Suehiro
Colour
Brown White
Grit type
Super Fine
Item weight
670 Grams
Manufacturer
Suehiro
Material
Ceramic

🪨durable premium ceramic build

⚖️lightweight 900g for easy handling

⚙️5000 grit ultra-fine precision

$230.34

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Description

🔪 Sharpen like a pro, finish like a legend.

NAGURA STONE INCLUDED - Effortlessly maintain optimal sharpening surface for consistent results.
PREMIUM CERAMIC DURABILITY - Engineered for long-lasting performance without surface wear.
ULTRA FINE 5000 GRIT FINISH - Achieve razor-sharp edges with professional-grade smoothness.
COMPACT LIGHTWEIGHT DESIGN - Perfectly sized (206x73x23mm) and easy to maneuver for precise control.
TRUSTED BY PROS ENTHUSIASTS - Join thousands who rely on Suehiro’s legendary quality and satisfaction.

The Suehiro Rika 5000-DN is a premium ceramic finishing whetstone with an ultra-fine 5000 grit, designed for professionals and serious enthusiasts seeking flawless edge refinement. Weighing 900g and sized for optimal control, it includes a Nagura stone for surface maintenance, ensuring durable, smooth sharpening performance that has earned a 4.8-star rating from over 300 users.

Specifications

ASIN	B07JLP4635
Best Sellers Rank	177,464 in DIY & Tools ( See Top 100 in DIY & Tools ) 177 in Sharpening Stones
Brand Name	Suehiro
Colour	Brown, White
Customer Reviews	4.8 4.8 out of 5 stars (326)
Global Trade Identification Number	04966684018051
Grit Type	Super Fine
Item Dimensions L x W x H	20.6L x 7.3W x 2.3H centimetres
Item Weight	670 Grams
Manufacturer	Suehiro
Manufacturer Part Number	4966684018051
Material Type	Ceramic
Model Number	4966684018051
Number of Items	1
Number of Packs	1
Unit Count	1.0 count

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

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$230.34

Duties & taxes included

In stock

Sold byAmazon EcuadorDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Ecuador.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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