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Whetstone grit chart: which grits to use and in what order

The grit number tells you how fast a stone cuts and how fine an edge it leaves. Here is what that means in practice.

By Pickspry EditorialUpdated 3 picks

The short answer

For most kitchen knives, three grits cover everything: 220 to 400 for repair and reprofiling, 1000 for the main sharpening stage, and 3000 to 6000 for finishing. A two-sided 1000/6000 stone is the most common starting point because it handles both jobs in one purchase.

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Quick picks

How we chose

Grit numbers come from standards organizations that classify abrasive particle size. The JIS standard (used by Japanese stone makers) and the FEPA standard (used in Europe) measure the same thing in different ways, which is why stones from different manufacturers with the same grit number cut slightly differently. This guide explains the JIS-based numbers that most waterstone and combination stone labels use.

The picks, in detail

3 picks reviewed
01
Best all-in-one starter set
Sharp Pebble Sharp Pebble Premium Whetstone 1000/6000

Sharp Pebble Premium Whetstone 1000/6000

Brand: Sharp Pebble

Best for

Home cooks who want one purchase that covers both sharpening and finishing without buying separate stones.

Skip if

You sharpen damaged or chipped knives regularly. A 220 or 400 grit coarse stone is a better first purchase if that is your situation.

Check price on Amazon

The 1000 grit side removes metal fast enough to sharpen a dull edge in a reasonable number of strokes. The 6000 grit side polishes the edge and removes the wire burr left by the coarser stage. Sharp Pebble includes an angle guide, which helps beginners maintain a consistent bevel angle until the motion becomes natural.

The aluminum oxide composition cuts consistently and does not hollow out as fast as softer stones. The bamboo base keeps the stone from sliding during use.

What buyers say

Home cooks who want one purchase that covers both sharpening and finishing say Sharp Pebble Premium Whetstone 1000/6000 does what it describes without needing adjustments out of the box. Buyers say the build quality is consistent with what the product description suggests. Buyers who find themselves in a position where you sharpen damaged or chipped knives regularly say a different option makes more sense for their situation.

Specifications

Specifications for Sharp Pebble Premium Whetstone 1000/6000
Grits1000 and 6000
Size7 x 2.4 inches
TypeAluminum oxide (Corundum)
IncludesNon-slip bamboo base, angle guide, flattening stone

Specs from Sharp Pebble, Premium Whetstone 1000/6000 product listing

02
Best coarse repair stone
King King KW-65 1000/6000 Combination Whetstone

King KW-65 1000/6000 Combination Whetstone

Brand: King

Best for

Sharpeners who want a Japanese water stone rather than an aluminum oxide stone, with the same 1000/6000 pairing.

Skip if

You want a coarse stone below 1000 grit for chipped or reprofiled knives.

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King is one of the oldest whetstone manufacturers in Japan and the KW-65 is their most commonly recommended starter combination. The 1000 grit side cuts more aggressively than the 6000 side of most combo stones from other brands, which means a duller knife takes fewer strokes to sharpen.

King's water stones require soaking before use, typically 5 to 10 minutes. They cut faster when wet and leave a slurry that aids polishing.

What buyers say

Most buyers fitting the profile of sharpeners who want a Japanese water stone rather than an aluminum oxide stone report King KW-65 1000/6000 Combination Whetstone meets their expectations across regular use. Build quality and performance hold up consistently in buyer reports for regular use. The common reason buyers pass on it is when you want a coarse stone below 1000 grit for chipped or reprofiled knives.

Specifications

Specifications for King KW-65 1000/6000 Combination Whetstone
Grits1000 and 6000
TypeVitrified aluminum oxide (Japanese water stone)
MountingPlastic holder included

Specs from King, KW-65 Whetstone product page

03
Best fine finishing stone
Naniwa Naniwa Chosera 3000 Grit Stone

Naniwa Chosera 3000 Grit Stone

Brand: Naniwa

Best for

Sharpeners who already have a 1000 grit stone and want a dedicated mid-range stone before the final polish.

Skip if

You are just starting out. A combination stone is a better first purchase.

Check price on Amazon

The Naniwa Chosera line is ceramic rather than aluminum oxide, which means it is a splash-and-go stone. No soaking required. The 3000 grit sits in a useful middle range: it removes the scratches left by a 1000 grit stone while still cutting fast enough to refine a bevel without spending ten minutes on each side.

Naniwa designs the Chosera with a magnesia binder that holds abrasive particles longer than softer stones, so the stone stays flat longer between truing sessions.

What buyers say

Buyers say Naniwa Chosera 3000 Grit Stone delivers on its stated purpose without hidden trade-offs in the first several uses. The group most consistently satisfied is sharpeners who already have a 1000 grit stone and want a dedicated mid-range, who say it handles their specific use case reliably. Where buyers recommend looking elsewhere is when you are just starting out.

Specifications

Specifications for Naniwa Chosera 3000 Grit Stone
Grit3000
TypeCeramic (splash and go)
BackingMagnesia binder with plastic base attached

Specs from Naniwa, Chosera 3000 product page

The full grit chart

Grit range Category What it does
120 to 220 Extra coarse Removes large chips, reshapes a completely wrong bevel angle
320 to 400 Coarse Repairs minor chips, establishes a new bevel on a very dull knife
600 to 800 Medium coarse Transitions between coarse work and the main sharpening stage
1000 Medium The standard starting point for most maintenance sharpening
2000 to 3000 Medium fine Refines the edge after 1000, reduces scratch pattern
4000 to 6000 Fine Polishes the edge, removes wire burr from coarser stages
8000 to 12000 Extra fine Mirror polish, used by enthusiasts and professional sharpeners

Which grits you actually need

Most home cooks do not need more than two stones. A 1000 grit stone handles the main sharpening work and a 6000 grit stone finishes the edge. That combination takes a dull kitchen knife from struggling to shave arm hair in 20 to 30 minutes of practice.

If you work with chipped knives or want to change a factory bevel angle, add a 220 or 400 grit stone as the first step. If you want a refined edge on a Japanese gyuto or a pocket knife, add a 3000 grit stone between the 1000 and 6000.

For most people, more than three grits adds complexity without a meaningful improvement in cutting performance.

Coarse grits: repair and reprofiling

A 120 to 400 grit stone removes metal fast. This is useful in two situations: a chipped edge that needs material removed before you can sharpen normally, and a knife with a factory bevel angle you want to change.

On a typical kitchen knife in average condition, you do not need this range at all. Start here only when the edge is noticeably damaged or the bevel is inconsistent.

Medium grits: the main sharpening stage

1000 grit is the workhorse. This is where you sharpen. The goal at this stage is to raise a burr: a thin wire of metal that forms on the opposite side of the blade as you work one side against the stone. A consistent burr across the entire edge means the stone has reached the apex.

Once you feel the burr, switch sides and repeat until the burr transfers. Then move to a finer stone to remove it.

Fine grits: finishing and polishing

A 3000 to 6000 grit stone refines the scratch pattern left by the 1000 grit stage. Finer scratches along the edge mean a cleaner, more durable cutting surface. At 6000 grit, most edges are sharp enough to slice paper cleanly and work well for kitchen prep.

The 8000 to 12000 range is for sharpeners who want a hair-shaving, mirror-polished edge. That level of refinement is noticeable on thin-slicing tasks but overkill for chopping vegetables.

Splash-and-go vs. soak stones

Softer stones (most Japanese water stones, King brand) need soaking for 5 to 10 minutes before use. They absorb water into their pores, which helps them cut and keeps them from glazing over.

Harder ceramic stones (Naniwa Chosera, Shapton) are splash-and-go. A few drops of water on the surface is all they need. They flatten more slowly and cost more up front, but they require less maintenance.

For beginners, a soaking stone with a 1000/6000 combination is the most forgiving starting point.

Compare the picks

Side by side comparison of every pick
Specification
Sharp Pebble Sharp Pebble Premium Whetstone 1000/6000
Sharp Pebble Premium Whetstone 1000/6000
King King KW-65 1000/6000 Combination Whetstone
King KW-65 1000/6000 Combination Whetstone
Naniwa Naniwa Chosera 3000 Grit Stone
Naniwa Chosera 3000 Grit Stone
Our verdictBest all-in-one starter setBest coarse repair stoneBest fine finishing stone
Grits1000 and 60001000 and 6000Not listed
Size7 x 2.4 inchesNot listedNot listed
TypeAluminum oxide (Corundum)Vitrified aluminum oxide (Japanese water stone)Ceramic (splash and go)
IncludesNon-slip bamboo base, angle guide, flattening stoneNot listedNot listed
MountingNot listedPlastic holder includedNot listed
GritNot listedNot listed3000
BackingNot listedNot listedMagnesia binder with plastic base attached
BuyCheck priceCheck priceCheck price

Questions people ask

What does the grit number on a whetstone mean?

The grit number refers to the particle size of the abrasive material. Lower numbers (120 to 400) have larger, coarser particles that remove metal fast and are used for chipped edges or reprofiling. Higher numbers (3000 to 12000) have finer particles that polish the edge and leave a smoother finish.

Do I need to use every grit in order?

No. You only need to start at a coarse grit if the knife is damaged or has a very dull bevel. A knife in reasonable shape starts at 1000 grit. If you want a refined, razor-sharp edge, add a 3000 to 6000 grit finish. A 12000 grit or strop is for a mirror polish that most kitchen tasks do not require.

What is the difference between JIS and FEPA grit ratings?

JIS (Japanese Industrial Standard) and FEPA (Federation of European Producers of Abrasives) both classify particle size, but the numbers are not interchangeable. A JIS 1000 stone and a FEPA 1000 stone cut differently. Japanese water stones use JIS. Most other stones use FEPA or proprietary ratings. When in doubt, check the manufacturer's description of what the stone does rather than comparing numbers across brands.

How often should I flatten my whetstone?

Flatten it when you see a hollow forming in the middle. For home sharpeners who use a stone weekly, that is typically every few months. A lapping plate or diamond plate is the most reliable flattening tool.

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