Shapton GlassStone Seven Stones

Shapton GlassStone Seven Stones

Item # SHG7

25 Micron - $39.99
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11.5 Micron - $47.99
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6.7 Micron - $54.99
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4 Micron - $57.99
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3 Micron - $62.99
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2 Micron - $64.99
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1.2 Micron - $79.99
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.85 Micron - $104.99
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.44 Micron - $109.99
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Expanded Line of GlassStones for the G7 Knife Sharpening Kit

Shapton has expanded the range of stones available for their GlassStone Seven Knife Sharpening Kit. In addition to the three stones included in the kit, there are now an additional 6 grits to choose from, increasing the flexibility of this already impressive sharpening system.

7mm Thick Abrasive Layer

The "Seven" in the name of the Shapton Glass Stone Seven, refers to the 7mm thick layer of abrasive on each stone. This 7mm of abrasive is 2mm thicker than the 5mm layer found on the Shapton HR and HC Series Glass Stones. Like Shapton's other Glass Stones, the stones in the G7 Kit are mounted to a 5mm thick glass base, making for stable, long lasting sharpening stones.


As you would expect from Shapton, the G7 Stones are splash-and-go. Simply get them wet and they are ready to use. No need to soak them before sharpening, so you can get back to using your sharp knives faster.

Comprehensive Range of Grits

The grits of the G7 stones are unique, they are not simply smaller copies of the other Shapton Glass Stones. The selection of grits in the kit provides a comprehensive range for complete sharpening of knives.

The available grits are:

  • 25 micron - about 600 grit. This stone is included in the GlassStone Seven Knife Sharpening Kit
  • 11.5 micron - about 1,500 grit.
  • 6.70 micron - about 2,500 grit. This stone is included in the GlassStone Seven Knife Sharpening Kit
  • 4 micron - about 3,700 grit
  • 3 micron - about 5,000 grit
  • 2 micron - about 7,000 grit
  • 1.2 micron - about 11,000 grit
  • .85 micron - about 17,000 grit
  • .44 micron - over 30,000 grit. This stone is included in the GlassStone Seven Knife Sharpening Kit

The G7 Stones are 160mm x 37mm, or about 6-1/4" x 1-7/16". This is a bit smaller than the 210mm x 70mm, or 8 1/4" x 2 3/4", size of the HR and HC series stones. They are designed to fit the stone holder of the GlassStone Seven Knife Sharpening Kit, but they can also be used independently.

Sharpening Supplies is an authorized Shapton retailer. Shapton products are made in Japan.

Q. Are the stones made of glass?

A. The stones themselves are not made of glass. The Shapton GlassStones are backed with 5mm of glass to provide a firm, flat surface for which to adhere the ceramic water stone abrasive material.

Need more information?

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Emails are answered Monday through Friday
Thanks John, I am so glad to be working with people who know their products and how to use them. You have a very informative and well laid out website and I learned a lot. It was a rainy Sunday and I watched every video and read through each article. The information you provided was very helpful in teaching technique and helping me decide what to buy. Also your products are so well thought out, that no matter what stone you prefer (oil, water or diamond), there is a nice package available for a beginner. All of the products you put together each had their own advantages and believe me, each one spent some time in the shopping cart until I made my final decision.
Randy Q, New York, NY