Flattening stones (truing stones), silicon carbide powder for flattening water stones

A flattening block is used to dress stones that are no longer flat enough to sharpen properly. A flat stone is indispensable for effective sharpening, especially of flat chisels and plane blades. To quickly flatten a stone, you simply move it across the surface of the flattening block with circular or back and forth movements. A steel flattening block should be used only with silicon carbide powder. A silicon carbide flattening block can be used without powder but you can speed up the process if you spread a little silicon carbide powder on the block. The latter method is strongly recommended for hard stones like those available from Shapton. But remember, if you use an abrasive powder you must afterwards rinse the sharpening stone thoroughly with water.

Naniwa 220 flattening stone (large)

220 grit grade flattening stone

made of silicon carbide
suitable for all water stones

Size 300 mm x 150 mm x 20 mm (12 x 6 x 3/4 inch)
Weight 2.4 kg (5 lbs)

This large flattening (truing) stone is ideal for flattening the surface of sharpening stones that have become dished or have developed grooves. More ...

One World Week
instead of* € 62,90

Code 313202

Price ^∗ € 53.47

Juuma flattening stone

Size 240 mm x 100 mm x 32 mm
Weight 1.7 to 1.8 kg

With these comfortably sized flattening stones, you can very quickly resurface hollowed sharpening stones so that they are flat and true again. In contrast to the other flattening stones listed above, which are made of silicon carbide, these stones are made of aluminum oxide, which is a sharper, more abrasive material and cuts faster than the silicon carbide. Manganese is added to increase the dimensional stability of these stones, which is why they are pink. To keep these blocks flat, you can rub two of them together, even if they have different grit grades.

Juuma 120 grit grade flattening stone

recommended for stones with grain size 120 to 6000

By sea to us

Code 330514

Price ^∗ € 103.41

Juuma 220 grit grade flattening stone

recommended for all waterstones

Expected to be available from week 28 / 2024

Code 330517

Price ^∗ € 109.56

Shapton Naoru lapping plate

Water stone correction plate for

dressing all water stones
made of steel

Size 247 x 99 x 25 mm (9-3/4 x 4 x 1 inch)
Weight 2.7 kg (6 lbs)

The flattening plate comes with two bottles of silicon carbide powder (coarse and medium). The plate has grooves to collect the slurry. This is the Japanese market version. More ...

One World Week
instead of* € 224,90

Code 310996

Price ^∗ € 191.16

Shapton correction powder for lapping plate

Use these abrasives on lapping plates or truing stones for fast results when flattening water stones.

Note: Not for use on diamond flattening plates!

Which powder for my stones?

Grit grade 120 correction powder

(coarse, silicon carbide)
Content 190 g

Code 310990

Price ^∗ € 24.40

Base price € 128,42 per kg

Grit grade 180 correction powder

(medium, silicon carbide)
Content 190 g

Code 310991

Price ^∗ € 24.90

Base price € 131,05 per kg

Grit grade 4000 correction powder

(superfine, aluminum oxide)
Content 100 g

One World Week
instead of* € 40,90

Code 310992

Price ^∗ € 34.77

Base price € 347,70 per kg

Silicon carbide powder (correction powder)

The additive of choice for flattening whetstones. You can really speed up the popular method – waterproof sandpaper on a glass plate – by adding just a teaspoonful of this powder. You will also increase the effectiveness of the Naniwa flattening stone with this powder. Also suitable for honing the backs of Japanese chisels blades on a steel flattening plate! Content 150 g.

Note: Not for use on diamond flattening plates!

Grit grade 60 (coarse) correction powder

One World Week
instead of* € 5,50

Code 109025

Price ^∗ € 4.67

Base price € 31,13 per kg

Grit grade 120 (medium coarse) correction powder

One World Week
instead of* € 5,50

Code 109026

Price ^∗ € 4.67

Base price € 31,13 per kg

Grit grade 180 (medium fine) correction powder