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)

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)

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: 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: 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: 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.

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: 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: 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: 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.

4.7/5

Product ID: 257611238

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Details

Material
Diamonds
Brand
SHARPAL
Colour
Silver and
Product dimensions
6.4L x 3W x
Item weight
1 Pounds

⚡5x faster sharpening

🔩Sharpen all hard materials

🛡️Super flat, durable surface

Frequently Bought Together

SHARPAL 156N Double-sided Diamond Sharpening Stone Whetstone Knife Sharpener |Coarse 325 / Extra Fine 1200 Grit | Storage Case with NonSlip Base & Angle Guide (6 in. x 2.5 in.) – Father’s Day Gift

SHARPAL 204N Leather Strop (Genuine Cowhide) 8" x 3" Kit with 2 Oz. Polishing Compound & Angle Guide, Knife Stropping Block for Honing Knives, Straight Razor, Chisels – Great Father’s Day Gift

SHARPAL 194H Whetstone Knife Blade Sharpener Sharpening Stone Angle Guide, Chisel/Plane Iron Blade Honing Guide, Knife Edge Angle Finder, Knife Sharpening Trainer (Angle from 15° to 45°)

Description

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

DUAL GRIT PRECISION - Coarse 325 grit for quick edge setting, extra fine 1200 grit for razor honing
MIRROR FLAT TECHNOLOGY - Ensures a perfectly even surface for consistent sharpening every time 🛡️
ALL IN ONE SHARPENING KIT - Includes non-slip base, storage box & 4-angle guide for flawless results
UNIVERSAL HARDNESS MASTER - Effortlessly hone steel, carbide, ceramic & more 🔩
LIGHTNING FAST EDGE REVIVAL - Sharpen knives up to 5x faster than traditional stones ⚡

The SHARPAL156N Diamond Whetstone features industrial monocrystalline diamonds electroplated on a thick steel base, delivering up to 5 times faster sharpening without oil or water. Its dual grit sides (325 coarse and 1200 extra fine) and exclusive MirrorFlat technology guarantee precise, durable, and versatile sharpening for all hard materials, complemented by a non-slip base and integrated angle guide for professional results.

Specifications

Brand	SHARPAL
Model Number	156N
Color	Silver and Black
Product Dimensions	6.5 x 3.27 x 1.26 cm; 453.59 g
Material	Monocrystalline Diamonds
Item Weight	454 g

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?

Is water or oil required during the sharpening process?

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

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

How long does it last?

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"?

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

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

Reviews

4.7

All from verified purchases

A**I

Best knife sharpening tool ever.

This is the best knife sharpening tool available in the world.Just buy a wooden leather strop with green compound.Few minutes of practice would make your knife feel exceptionally sharp & uniform.

20.07.2025

R**T

Great Value for the Money

Sharpens really fast and the case provides a stable antislip base.

3.02.2020

O**7

Excellent Diamond Stone

Two stones for the price of one. The stones cut extremely well and water is not required which makes clean up a breeze. It comes in a plastic case that doubles as a stone holder, with a non-slip base, adding to the value. I would recommend this to beginners and experts alike.

19.10.2024

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TrustScore 4.5 | 7,300+ reviews

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Good experience, but the tracking updates could be better.

2 months ago

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

2 months ago

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TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

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