Stones

Nagura

Nagura are very helpful in both increasing the efficiency of metal removal by adding grit on top of the stone, but also in creating unique, multi-grit slurry combinations important for polishing purposes. They can also be used to condition the surface of the sharpening stone after using a flattening plate.

Brand: NSK Kogyo Ltd.
Length: 40mm
Width:18mm
Height:15mm
Weight: 18g
Grit Range: #800

Flattening Stones

Although all NSK stones are very wear resistant, these flattening/dressing stones are specifically formulated to counter the wear resistance and flatten at an impressive speed. They also work very well on natural stones as well, and the higher grit flattening plates will leave a scratch-free surface unlike many other diamond plates. The flattening stones are slotted to eliminate suction when rubbing against the sharpening stone.

If needed, coarser flattening grits can initially be used on higher grit sharpening stones to remove material quickly, as long as you condition the surface of the sharpening stone with a higher grit flattening plate before use in order to prevent overly-aggressive surface. Each grit of the flattening stones can be used on several different grits, so there is no need to get every single flattening grit for each corresponding grits of NSK sharpening stone you may have; see recommended grit ranges for each flattening stone below.

Flattening grits: 200, 400, 600, 1000, 3000, 6000

Recommended Use: Flattening grits from 200-1000 can be used on All NSK sharpening stones up to 1500 grit. All NSK sharpening stones with grits above 1000 should ideally be flattened with a grit as close to the stone's grit as possible. For example, a 3000 grit sharpening stone should be flattened with grits 3000 and above.

Brand: NSK Kogyo Ltd.
Length: 200mm
Width: 75mm
Height: 17mm
Weight: 468g
Grit Range: #1000

Flattening Stones

Although all NSK stones are very wear resistant, these flattening/dressing stones are specifically formulated to counter the wear resistance and flatten at an impressive speed. They also work very well on natural stones as well, and the higher grit flattening plates will leave a scratch-free surface unlike many other diamond plates. The flattening stones are slotted to eliminate suction when rubbing against the sharpening stone.

If needed, coarser flattening grits can initially be used on higher grit sharpening stones to remove material quickly, as long as you condition the surface of the sharpening stone with a higher grit flattening plate before use in order to prevent overly-aggressive surface. Each grit of the flattening stones can be used on several different grits, so there is no need to get every single flattening grit for each corresponding grits of NSK sharpening stone you may have; see recommended grit ranges for each flattening stone below.

Flattening grits: 200, 400, 600, 1000, 3000, 6000

Recommended Use: Flattening grits from 200-1000 can be used on All NSK sharpening stones up to 1500 grit. All NSK sharpening stones with grits above 1000 should ideally be flattened with a grit as close to the stone's grit as possible. For example, a 3000 grit sharpening stone should be flattened with grits 3000 and above.

Brand: NSK
Length: 200mm
Width: 75mm
Height: 17mm
Weight: 468g
Grit Range: #3000

Flattening Stones

Although all NSK stones are very wear resistant, these flattening/dressing stones are specifically formulated to counter the wear resistance and flatten at an impressive speed. They also work very well on natural stones as well, and the higher grit flattening plates will leave a scratch-free surface unlike many other diamond plates. The flattening stones are slotted to eliminate suction when rubbing against the sharpening stone.

If needed, coarser flattening grits can initially be used on higher grit sharpening stones to remove material quickly, as long as you condition the surface of the sharpening stone with a higher grit flattening plate before use in order to prevent overly-aggressive surface. Each grit of the flattening stones can be used on several different grits, so there is no need to get every single flattening grit for each corresponding grits of NSK sharpening stone you may have; see recommended grit ranges for each flattening stone below.

Flattening grits: 200, 400, 600, 1000, 3000, 6000

Recommended Use: Flattening grits from 200-1000 can be used on All NSK sharpening stones up to 1500 grit. All NSK sharpening stones with grits above 1000 should ideally be flattened with a grit as close to the stone's grit as possible. For example, a 3000 grit sharpening stone should be flattened with grits 3000 and above.

Brand: NSK
Length: 200mm
Width: 75mm
Height: 17mm
Weight: 468g
Grit Range: #600

Flattening Stones

Although all NSK stones are very wear resistant, these flattening/dressing stones are specifically formulated to counter the wear resistance and flatten at an impressive speed. They also work very well on natural stones as well, and the higher grit flattening plates will leave a scratch-free surface unlike many other diamond plates. The flattening stones are slotted to eliminate suction when rubbing against the sharpening stone.

If needed, coarser flattening grits can initially be used on higher grit sharpening stones to remove material quickly, as long as you condition the surface of the sharpening stone with a higher grit flattening plate before use in order to prevent overly-aggressive surface. Each grit of the flattening stones can be used on several different grits, so there is no need to get every single flattening grit for each corresponding grits of NSK sharpening stone you may have; see recommended grit ranges for each flattening stone below.

Flattening grits: 200, 400, 600, 1000, 3000, 6000

Recommended Use: Flattening grits from 200-1000 can be used on All NSK sharpening stones up to 1500 grit. All NSK sharpening stones with grits above 1000 should ideally be flattened with a grit as close to the stone's grit as possible. For example, a 3000 grit sharpening stone should be flattened with grits 3000 and above.

Brand: NSK
Length: 200mm
Width: 75mm
Height: 17mm
Weight: 468g
Grit Range: #6000

Hakuto

**Medium hardness, they are ideal for creating softer bevel changes and finishing full convex grinds.** The Hakuto 1 #1500 grit provides either an excellent transition from the lower Hakuto 1 stones and the Oboro Knife series into more complex work, or as the terminal stone if one wants a practical but keen edge. 

Recommended for advanced users.

Brand: NSK
Length: 200mm
Width: 75mm
Height: 26mm
Weight: 729g
Grit Range: #1500 

Hakuto

**Medium hardness, they are ideal for creating softer bevel changes and finishing full convex grinds.** Hakuto 1 stones are best suited for rough sharpening on most knives other than carbon or semi stainless. If that is what you have, it is recommended to go with the Oboro knife series. 

Recommended for advanced users.

Brand: NSK
Length: 200mm
Width: 75mm
Height: 26mm
Weight: 723g
Grit Range: #200 

Hakuto

**Medium hardness, they are ideal for creating softer bevel changes and finishing full convex grinds.** Hakuto 1 stones are best suited for rough sharpening on most knives other than carbon or semi stainless. If that is what you have, it is recommended to go with the Oboro knife series. 

Recommended for advanced users.

Brand: NSK
Length: 200mm
Width: 75mm
Height: 26mm
Weight: 709g
Grit Range: #400 

Hakuto

**Medium hardness, they are ideal for creating softer bevel changes and finishing full convex grinds.** Hakuto 1 stones are best suited for rough sharpening on most knives other than carbon or semi stainless. If that is what you have, it is recommended to go with the Oboro knife series. 

Recommended for advanced users.

Brand: NSK
Length: 200mm
Width: 75mm
Height: 26mm
Weight: 713g
Grit Range: #800 

Hakuto

**Medium hardness, they are ideal for creating softer bevel changes and finishing full convex grinds.** Hakuto 2 stones are recommended for the advanced sharpening and polishing of all steels, regardless of whether one started on Hakuto 1 or Oboro Knife. 

Recommended for advanced users.

Brand: NSK
Length: 200mm
Width: 75mm
Height: 26mm
Weight: 729g
Grit Range: #3000 

Hakuto

**Medium hardness, they are ideal for creating softer bevel changes and finishing full convex grinds.** Hakuto 2 stones are recommended for the advanced sharpening and polishing of all steels, regardless of whether one started on Hakuto 1 or Oboro Knife. 

Recommended for advanced users.

Brand: NSK
Length: 200mm
Width: 75mm
Height: 26mm
Weight: 673g
Grit Range: #6000 

Kyokuha

The original NSK Kogyo diamond stone series, Kyokuha are built for ease of use and compatibility with a wide variety of steels from carbon, stainless, powder, even tool steel. It has a large selection of grits to fit almost every user's needs. These are the softest of the NSK series and probably easiest to learn sharpening and polishing. 

Recommended for beginners and seasoned users, or those who simply prefer softer stones.

Brand: NSK Kogyo Ltd.
Grit Range: #6000-8000
Length: 200mm
Width: 75mm
Height: 26.5mm
Weight: 740g

Oboro Knife

The newest NSK series, Oboro Knife was designed specifically for kitchen knives, and are very effective on a wide variety of steels for a wide variety of services. The abrasives in Oboro Knife tend to cut deeper and faster than other NSK lines, thus they are the most ideal series for full-blade servicing such as thinning, repairing, and reprofiling. Ideal for seasoned to advanced users.

Oboro Knife grits: 200, 400, 800, 2000, 4000, 6000

Brand: NSK Kogyo Ltd.
Thickness: 3.5mm
Length: 200mm
Width: 75mm
Height: 26.5mm
Weight: 740g
Grit Range: #6000

Oboro Knife

The newest NSK series, Oboro Knife was designed specifically for kitchen knives, and are very effective on a wide variety of steels for a wide variety of services. The abrasives in Oboro Knife tend to cut deeper and faster than other NSK lines, thus they are the most ideal series for full-blade servicing such as thinning, repairing, and reprofiling. Ideal for seasoned to advanced users.

Oboro Knife grits are: 200, 400, 800, 2000, 4000, 6000

Brand: NSK Kogyo Ltd.
Thickness: 3.5mm
Length: 200mm
Width: 75mm
Height: 26.5mm
Weight: 740g
Grit Range: #800

Hand sharpening under 200 grit or less requires a more powerful cutting speed. This stone can be used when you feel that the speed has slowed down. In the Metate process, which involves making the sharpening stone surface rougher to revive abrasiveness, this stone can effectively restore cutting speed.

We recommend using NSK Kogyo's Flattener to flatten the stone before starting sharpening, and using this stone for Metate on 200 grit or under Daimond sharpening stone.

For detailed instructions, please read Komon's instructions about sharpening stone maintenance

Brand: NSK Kogyo Ltd.
Length: 125mm
Width: 50mm
Height: 25mm
Weight: 335g 

Recommended for use on NSK Kogyo rough grit stone below #200

Please Note: These pictures and measurements are examples. Your specific product may differ slightly in appearance and measurements.

Stone Length: 210mm
Stone Width: 70mm
Stone Height: 15.6mm
Stone Weight: 751

Please Note: These pictures and measurements are examples. Your specific product may differ slightly in appearance and measurements.

Stone Length: 210mm
Stone Width: 70mm
Stone Height: 15.6mm
Stone Weight: 555g

 Please Note: These pictures and measurements are examples. Your specific product may differ slightly in appearance and measurements.

Please Note: These pictures and measurements are examples. Your specific product may differ slightly in appearance and measurements.

Please Note: These pictures and measurements are examples. Your specific product may differ slightly in appearance and measurements.

Please Note: These pictures and measurements are examples. Your specific product may differ slightly in appearance and measurements.