At 10000 grit you are working at the upper limit of what most sharpeners ever need - an edge that is beyond razor sharp, well past mirror finish, and producing a level of refinement that separates serious stone work from stropping. The Shapton GlassStone 10000 is for sharpening enthusiasts who want to explore what their steel is capable of and who have developed the technique to bring out what an ultra-fine stone can deliver. One reviewer who uses it regularly on blue steel kitchen knives described the tactile feedback while sharpening as unmatched - a meaningful comment at this grit level, where the difference between stones becomes something you feel as much as see in the finished edge.
The 10000 shares all the GlassStone characteristics that define the line - hard bond, fast-cutting relative to its grit, slow-dishing, and splash and go. That last point matters more at high grit levels than lower ones: an ultra-fine stone that requires soaking adds friction to the process, and the GlassStone removes that barrier. A few strokes on each side of a blue steel knife is enough to bring the edge back to working sharpness, as the second reviewer confirmed - a quick maintenance session rather than a full sharpening. The same reviewer noted cleanup is straightforward: wash with water and a cloth, wipe dry, leave it on the counter for an hour. No fuss.
What Customers Are Saying: Both reviewers gave five stars. One called the tactile feedback while sharpening unmatched - the kind of comment that resonates with anyone who has spent time on stones and knows how different they can feel at this grit range. The second reviewed it as a daily-use maintenance stone for blue steel knives, praising the quick cutting action, the easy cleanup, and the straightforward drying - noting it has become a permanent fixture in his kitchen. For a stone at this price and grit level, that kind of practical everyday use is a strong endorsement.
Care Instructions: Splash with water before each use - no soaking required after the initial first-use soak. Flatten regularly with a diamond plate to maintain a true surface. Store dry between sessions. Handle with care - the tempered glass backing improves drop resistance considerably over standard ceramic stones but is not indestructible. Spots or color variation on the surface are normal and do not affect performance.
The 10000 shares all the GlassStone characteristics that define the line - hard bond, fast-cutting relative to its grit, slow-dishing, and splash and go. That last point matters more at high grit levels than lower ones: an ultra-fine stone that requires soaking adds friction to the process, and the GlassStone removes that barrier. A few strokes on each side of a blue steel knife is enough to bring the edge back to working sharpness, as the second reviewer confirmed - a quick maintenance session rather than a full sharpening. The same reviewer noted cleanup is straightforward: wash with water and a cloth, wipe dry, leave it on the counter for an hour. No fuss.
What Customers Are Saying: Both reviewers gave five stars. One called the tactile feedback while sharpening unmatched - the kind of comment that resonates with anyone who has spent time on stones and knows how different they can feel at this grit range. The second reviewed it as a daily-use maintenance stone for blue steel knives, praising the quick cutting action, the easy cleanup, and the straightforward drying - noting it has become a permanent fixture in his kitchen. For a stone at this price and grit level, that kind of practical everyday use is a strong endorsement.
- Brand: Shapton
- Origin: Made in Japan
- Series: GlassStone
- Grit: 10000
- Use: Splash and Go (no soaking required after first use)
- Construction: Abrasive bonded to tempered glass
- Stone Dimensions: 210 x 70 x 11 mm (8.25 x 2.75 x 0.44 in)
- Usable Abrasive Thickness: 5 mm
- Weight: 14 oz (400 g)
- Item Number: 50903
Care Instructions: Splash with water before each use - no soaking required after the initial first-use soak. Flatten regularly with a diamond plate to maintain a true surface. Store dry between sessions. Handle with care - the tempered glass backing improves drop resistance considerably over standard ceramic stones but is not indestructible. Spots or color variation on the surface are normal and do not affect performance.
Reviews
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Feels so good
Shapton 10000 glass stonePosted By: Dan Young - verified customer
29 people found this review helpful
I bought this stone and received it promptly. I love the 10,000 grit. This cuts quickly. Just a few strokes on each side of my blue steel knives restores the edge to razor sharp. I find the clean up is easy, just wash the stone with water and a cloth and the metal comes right off. I wipe the stone dry and set it out on the counter. After an hour, the stone is dry to the touch. This stone will always be in my kitchen. Easy to use, effective, and easy to care for.
29 people found this review helpful
I bought this stone and received it promptly. I love the 10,000 grit. This cuts quickly. Just a few strokes on each side of my blue steel knives restores the edge to razor sharp. I find the clean up is easy, just wash the stone with water and a cloth and the metal comes right off. I wipe the stone dry and set it out on the counter. After an hour, the stone is dry to the touch. This stone will always be in my kitchen. Easy to use, effective, and easy to care for.









