Sharpening stone PETROGRAD, 200*70*20mm, 120 grit
Abrasive water stones. Grit: 120, 150, 360, 500, 800, 1000,1500, 2000 and 4000 grit. Size 200x70x20mm. The abrasive grain is silicon carbide. Bond - ceramics. Hardness I ensures minimal wear of the stone during work. Steel does not overheat when sharpening. Does not require oil. Soak in water for 2-10 minutes before use. Designed for sharpening steels and hard alloys. Manufactured in Russia.
Sharpening stone PETROGRAD, 200*70*20mm, 360 grit
Abrasive water stones. Grit: 150, 360, 500, 800, 1000,1500, 2000 and 4000 grit. Size 200x70x20mm. The abrasive grain is silicon carbide. Bond - ceramics. Hardness I ensures minimal wear of the stone during work. Steel does not overheat when sharpening. Does not require oil. Soak in water for 2-10 minutes before use. Designed for sharpening steels and hard alloys. Manufactured in Russia.
Sharpening stone PETROGRAD, 200*70*20mm, 500 grit
Water stones. Grain size: 150, 360, 500, 1000, 1500, 2000 and 4000 grit. Size 200*70*20mm. Abrasive grain - silicon carbide. Bundle - ceramics. Hardness I ensures minimal wear of the stone during operation. When sharpening does not overheat the steel. Does not require the use of oil. Soak in water for 2-10 minutes before use. Designed for sharpening steels and hard alloys. Made in Russia.
Sharpening stone PETROGRAD, 200*70*20mm, 800 grit
Water stones. Grain size: 150, 360, 500, 1000, 1500, 2000 and 4000 grit. Size 200*70*20mm. Abrasive grain - silicon carbide. Bundle - ceramics. Hardness I ensures minimal wear of the stone during operation. When sharpening does not overheat the steel. Does not require the use of oil. Soak in water for 2-10 minutes before use. Designed for sharpening steels and hard alloys. Made in Russia.
Sharpening stone PETROGRAD, 200*70*20mm, 1000 grit
Water stones. Grain size: 150, 360, 500, 1000, 1500, 2000 and 4000 grit. Size 200*70*20mm. Abrasive grain - silicon carbide. Bundle - ceramics. Hardness I ensures minimal wear of the stone during operation. When sharpening does not overheat the steel. Does not require the use of oil. Soak in water for 2-10 minutes before use. Designed for sharpening steels and hard alloys. Made in Russia.
Sharpening stone PETROGRAD, 200*70*20mm, 1500 grit
Water stones. Grain size: 150, 360, 500, 1000, 1500, 2000 and 4000 grit. Size 200*70*20mm. Abrasive grain - silicon carbide. Bundle - ceramics. Hardness I ensures minimal wear of the stone during operation. When sharpening does not overheat the steel. Does not require the use of oil. Soak in water for 2-10 minutes before use. Designed for sharpening steels and hard alloys. Made in Russia.
Sharpening stone PETROGRAD, 200*70*20mm, 2000 grit
Water stone. 2000 grit. Size 200*70*20mm. Abrasive grain - silicon carbide. Bundle - ceramics. Hardness I ensures minimal wear of the stone during operation. When sharpening does not overheat the steel. Does not require the use of oil. Soak in water for 2-10 minutes before use. Used for sharpening and setting bevels.
High sharpening performance, second only to diamond, is ensured by the use of silicon carbide abrasive grains, which are notable for their sharpness and brittleness. The high hardness of carbide-silicon grinding materials allows you to confidently process not only carbon steels, but also hard alloys, which is impossible on stones made of electro-alumina powders. In addition to performance, it is worth noting the extraordinary tactile sensations when sharpening a tool. Stones quickly give a slurry and produce a very pleasant sound.
Water stones PETROGRAD are distinguished by high performance and geometry in a state of delivery.
In the characteristic of a water stone are specified: the first letter - hardness (I, J - soft, K - average); Japanese grain size according to JIS R6001-1987 is 150 (80 microns), 360 (34 microns), 500 (24 microns), 1000 (12 microns), 2000 (6 microns) and C is silicon carbide.
Comparison of FEPA, JIS and GOST standards:
Sharpening stone PETROGRAD, 200*70*20mm, 3000 grit
Water stones. Grain size: 3000 and 6000 grit. Size 200*70*20mm. Abrasive grain - silicon carbide. Bundle - ceramics. Hardness I ensures minimal wear of the stone during operation. When sharpening does not overheat the steel. Does not require the use of oil. Soak in water for 2-10 minutes before use. Designed for sharpening steels and hard alloys. Made in Japan.
Sharpening stone PETROGRAD, 200*70*20mm, 4000 grit
Water stones. Grain size: 150, 360, 500, 1000, 1500, 2000 and 4000 grit. Size 200*70*20mm. Abrasive grain - silicon carbide. Bundle - ceramics. Hardness I ensures minimal wear of the stone during operation. When sharpening does not overheat the steel. Does not require the use of oil. Soak in water for 2-10 minutes before use. Designed for sharpening steels and hard alloys. Made in Russia.
Sharpening stone PETROGRAD, 200*70*20mm, 6000 grit
Water stones. Grain size: 3000 and 6000 grit. Size 200*70*20mm. Abrasive grain - silicon carbide. Bundle - ceramics. Hardness I ensures minimal wear of the stone during operation. When sharpening does not overheat the steel. Does not require the use of oil. Soak in water for 2-10 minutes before use. Designed for sharpening steels and hard alloys. Made in Japan.