Will this be good for a ka bar?

Yes, But the K-Bar blade should be in excellent condition,because this is a very fine finishing stone for that mirror finish.

Is there a noticeable difference between the 8K in the 12K sharpening stone? Is it worth upgrading if you already have a 8k stone

It all depends on what you want in your sharpening toolbox! I have a 250, 300, 500, 800, 1K, 2K, 3K, 4K, 6K, 8K, 12K and 16K Stones... My 500 grit, 1k and 3k are showing noticeable wear on the stones... 8k and 12k are used for polishing my knives or chizels! But, I think the 12K natural stones a winner an extremely hard stones! With these stones you have to build up a slurry before honing! Good Luck... I love mine... and it comes in a NICE leather carrying case with a soft rubber surface mat for the stone...

What is the main abrasive in this stone?

The natural "Ocean Blue" Tsushima whetstone was supposidely quarried from a now closed underwater mine near South Tsushima Island. It is implied that this is a natural stone and not man made. As far as the exact type/material of stone, I have not been able to find any conclusive information on this nor any information on the mine itself. Out of all my stones, this one is probably my favorite. It is dence, yet forgiving. I use it as a polishing stone after using my ceramic shapton stones to sharpen my edge. I would say mine is more like an 8,000 grit, but that's not to say the stone you get couldn't be closer to 12,000. They are natural after all.

Is this for sharpening or honing or polishing?

It is mostly for honing and polishing; with a proper preparation (a 6-8K stone), this jnat will produce a mirror, razor sharp edge.

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

MASUTA Japanese Natural Sharpening Honing Stone Waterstone (3XL)

Product ID: 217811041

Details

Brand
MASUTA
Color
Gunmetal grey
Grit Type
Fine
Item Weight
2.2 Pounds
Manufacturer
Masuta
Material
Stone

⏳Long-lasting dense composition

🌊Natural Ocean Blue stone

🔪Ultra-fine #10-12K grit

1542.00 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered 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 Tunisia.

Secure transaction

Description

🔪 Sharpen Like a Samurai: Elevate Your Edge Game with Japan’s Finest

VERSATILE SHARPENING TOOL - Perfect for knives, chisels, gouges, razors, planes, and even fishing hooks—your all-in-one edge enhancer.
DURABLE DENSE FOR LONGEVITY - Hard, dense stone ensures high dish resistance and a longer lifetime cutting edge—sharpen like a pro for years.
ULTRA FINE GRIT FOR MIRROR EDGES - Achieve razor-sharp, push-cut precision with an ultra-fine #10-12K grit that outperforms typical 6000 grit stones.
AUTHENTIC OCEAN BLUE TSUSHIMA STONE - Experience the rare, natural sharpening power from a now-closed underwater mine near South Tsushima Island, Japan.
LIMITED EDITION WITH GOLDEN AUTHENTICITY STAMP - Own a piece of sharpening history with limited stock and a prestigious golden stamp of authenticity.

The MASUTA Japanese Natural Sharpening Honing Stone is a premium, ultra-fine grit (#10-12K) natural waterstone quarried from a now-closed underwater mine near South Tsushima Island. Known for its dense, hard composition and high dish resistance, this 8"x2.7"x1" stone delivers exceptional sharpening performance and longevity. Ideal for professional-grade honing of knives, chisels, razors, and more, it features a limited edition golden authenticity stamp, making it a coveted tool for serious sharpening enthusiasts.

Specifications

ASIN	B0HH4Q6YKS
Best Sellers Rank	#857,584 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,588 in Sharpening Stones
Brand	MASUTA
Brand Name	MASUTA
Color	Gray
Customer Reviews	4.5 out of 5 stars 76 Reviews
Grit Type	Fine
Item Dimensions L x W x H	9"L x 4"W x 1.3"H
Manufacturer	Masuta
Manufacturer Part Number	JWS-L
Material	Stone
Material Type	Stone
Model Number	12K
Number of Items	1
Product Dimensions	9"L x 4"W x 1.3"H
UPC	714833920885

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

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.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

1542.00 DT

Duties & taxes included

In stock

Sold byAmazon TunisiaDelivered 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 Tunisia.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

View all Trustpilot reviews