Nagura sharpening honing whetstone water stone knife wood chisel razor japanese

Description

Use
- Nagura are prep/correcting stones used with full-size sharpening stones (whetstones) to assist in sharpening knives, razors, chisels, planes, and other blades.
- Nagura are used to: 1) create a sharpening slurry/paste on the working surface of whetsones, 2) clean glazed/"clogged" whetstones from trapped metal micro shavings and swarf, which inhibit sharpening, and 3) flatten the working surface which becomes convex (dished) with use.
- By creating a cutting slurry, nagura aid in a uniform, better controlled sharpening movement by eliminating suction between the blade and the stone and resulting skipping action which can lead to deformed, micro chipped bevels.
- Nagura also help to break down grit particles of the host stone into smaller, finer size elements.
Like waterstones, naguras come in various grades of grit with a higher number denoting smaller particles and finer finish: ultra coarse: 120 - 240, coarse: 300 - 800, medium: 1000 - 3000, fine: 4000 - 7000, and ultra fine: 8000 - 12000.
The grit range of waterstones and naguras should be matched - this will create homogeneous slurry, avoid contamination, and extend the life of waterstones and blades.
Specifications
Nagura
Grit #
Size
Weight
Application
150 (80 micron)
3.0" x 1.0" x 1.0"
(75 x 25 x 25 mm)
3.1 oz (90 g)
- good for fast stock removal
- used for resurfacing/cleaning of whetstones
- should be followed by a finer grit nagura
1000 (16 micron)
2.6" x 1.3" x 1.0"
(65 x 33 x 25 mm)
3.7 oz (107 g)
- universal purpose, softer nagura
- excellent slurry formation
- used on stones with grit 1000 - 8000
- made in Japan
3000 (6 micron)
2.6" x 1.3" x 1.0"
(65 x 33 x 25 mm)
3.7 oz (107 g)
- universal purpose, finer grit nagura
- good slurry formation
- used on stones with grit 3000 - 8000
- made in Japan
4000 (3 micron)
2.6" x 1.3" x 1.0"
(65 x 33 x 25 mm)
3.7 oz (107 g)
- finish grade, medium hard nagura
- used for final edge refinement
- used on stones with grit > 4000
- made in Japan
6000 (2.6 micron)
2.6" x 1.3" x 1.0"
(65 x 33 x 25 mm)
3.7 oz (107 g)
- fine finish grade, medium hard nagura
- used for final edge refinement
- used on stones with grit > 6000
- made in Japan
8000 (1.8 micron)
2.6" x 1.3" x 1.0"
(65 x 33 x 25 mm)
3.7 oz (107 g)
- fine finish grade, medium hard nagura
- used for final edge refinement
- used on stones with grit > 8000
- made in Japan
12000 (1.2 micron)
(grit is approximate)
2.8" x 1.2" x 1.2"
(70 x 30 x 30mm)
6.1 oz (175 g)
- natural, medium hard "ocean blue" nagura
- polished on all six sides, high degree of flatness
- excellent formation of creamy slurry
- used for fine edge refinement
- does not require pre-soaking
- used with stones with medium to fine grits,
both synthetic and natural
- quarried from a now closed underwater mine
near South Tsushima Island, Japan
1000 (16 micron)
(grit is approximate)
2.8" x 1.2" x 1.2"
(70 x 30 x 30mm)
6.1 oz (175 g)
- natural, medium hard nagura
- universal purpose nagura
- excellent slurry formation
- used on stones with grit 1000 - 8000
- made in Japan
1000 (16 micron)
nagura dry powder
0.5 oz (14 g)
- general purpose, medium hard powder
- need to be mixed with water
- can be used directly or to speed up
slurry formation
- used on stones with grit 1000 - 6000
- made in Germany
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