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Q: Why does my diamond stone feel aggressive at first but smoother over time? Is it wearing out too fast?

It’s normal! The rough surface sharpens aggressively at first. With use, it smooths, exposing more diamonds for consistent performance. The break-in varies but usually takes several uses. Your stone isn’t wearing out—it’s adjusting for long-term use!

Q: After using the stone, dark areas appear on its surface. Does this mean the diamonds have worn off?

No, the dark areas are dried dirt from sharpening, not a sign of the diamonds wearing off. These marks don’t affect performance and can be left as is. For minor marks, use an eraser. For tough stains, clean with Bar Keepers Friend and air dry fully.

Q: Is water or oil required during the sharpening process?

Avoid using water during sharpening, as it may cause the iron filings on the stone's surface to rust. Testing shows minimal difference in sharpening performance between using oil and dry sharpening, so oil is not necessary.

Q: How long does it last?

The lifespan depends on usage, the hardness of the materials being sharpened, and maintenance. With proper care, it can last many years, even for those sharpening 3 to 4 times a week. Regular cleaning and light pressure extend its durability.

Q: Is it normal to see scratches on the surface after sharpening with this diamond stone?

Yes, it's completely normal. The scratches are just typical signs of use and do not affect the performance of the diamond stone. The diamond layer remains intact, so its sharpening ability stays as effective as ever.

Q: What is the cause of the rust and how can I deal with it?

The base of this product is stainless steel and will not rust. Any rust is caused by iron filings left on the stone's surface that oxidize if not cleaned. Use Bar Keepers Friend powder to clean it and ensure the stone is fully air-dried.

Q: How to clean the diamond stone?

To clean the stone, gently wipe the surface with a dry paper towel. If particles are clogged, use a rubber eraser or nylon brush to remove them. This will restore the stone to its original condition.

Q: The stone I received has some small pits on the shorter sides. Is this normal?

Yes, this is normal. The pits are caused by clamps used during the electroplating process and are not a sign of defects or prior use.

Q: Which version should I choose: 162N 8" x 3" or 156N 6" x 2.5"?

If budget allows, choose the 8" x 3" version for its larger surface, which is more efficient and easier to use for knives 8 inches or longer and tools. The 6" x 2.5" version is compact and sufficient for knives 6 inches or shorter.

Q: Should I use high pressure when sharpening with this diamond stone?

Avoid applying excessive pressure when sharpening, as it can accelerate wear on the diamond and shorten its lifespan. Instead, use light pressure to maximize the sharpening performance of the diamond particles.

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🔪 Sharpen smarter, not harder — your edge deserves the diamond standard!

ALL MATERIAL MASTERY - Effortlessly sharpen everything from high-speed steel to ceramic and carbide—no oil or water needed
ROCK SOLID STABILITY - Non-slip rubber base doubles as a sharpening platform, ensuring perfect control every time 🛡️
PERFECT ANGLE EVERY TIME - Integrated angle guide with 4 universal settings (14°, 17°, 20°, 25°) for professional-grade precision
PRECISION DUAL GRIT SYSTEM - Coarse 325 grit for rapid edge setting and extra fine 1200 grit for razor-sharp honing 🔩
LIGHTNING FAST EDGE REVIVAL - Sharpen knives up to 5x faster than traditional stones with industrial monocrystalline diamonds ⚡

The SHARPAL156N Diamond Whetstone is a premium 2-sided sharpening stone featuring industrial monocrystalline diamonds electroplated on a durable stainless steel base. With coarse 325 grit and extra fine 1200 grit surfaces, it delivers fast, precise sharpening and honing for all hard materials without oil or water. Its non-slip storage base and integrated angle guide provide unmatched stability and accuracy, making it the ultimate tool for professionals and enthusiasts seeking razor-sharp edges with ease.

Have a Question? See What Others Asked

Why does my diamond stone feel aggressive at first but smoother over time? Is it wearing out too fast?

After using the stone, dark areas appear on its surface. Does this mean the diamonds have worn off?

Is water or oil required during the sharpening process?

How long does it last?

Is it normal to see scratches on the surface after sharpening with this diamond stone?

What is the cause of the rust and how can I deal with it?

How to clean the diamond stone?

The stone I received has some small pits on the shorter sides. Is this normal?

Which version should I choose: 162N 8" x 3" or 156N 6" x 2.5"?

Should I use high pressure when sharpening with this diamond stone?

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.

1004 kr

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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Manufacturer	Sharpal Inc.
Part Number	156N
Product Dimensions	6.5 x 3.27 x 1.26 cm; 453.59 g
Item model number	156N
Size	['6 in. x 2.5 in.']
Colour	Silver and Black
Style	152 x 63mm / 6 x 2.5 Inch
Finish	Monocrystalline Diamond
Material	Monocrystalline Diamonds
Thickness	3.2 Centimetres
Item Package Quantity	1
Grit Description	Coarse, Extra Fine
Batteries included?	No
Batteries Required?	No
Item Weight	454 g

SHARPAL156N Diamond Whetstone Knife Sharpener with Storage Base, 2 Side Grit Coarse 325 / Extra Fine 1200, Diamond Sharpening Stone with Non-Slip Base and Angle Guide (152 x 63mm / 6 x 2.5 Inch)

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