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🪓 Sharpen smarter, not harder — your kitchen’s secret edge weapon!
The Ryerum Knife Sharpening Stone is a highly aggressive, water-activated whetstone that performs like a 320 grit stone despite its 1000 grit label. Equipped with two non-slip rubber bases, it ensures safe, stable sharpening for a variety of kitchen blades. Compact and beginner-friendly, it’s ideal for fast steel removal, edge reprofiling, and daily maintenance, making it a must-have tool for home cooks seeking professional-level sharpness without the fuss.





| Brand | ryerum |
| Color | Blue |
| Grit Type | Medium |
| Item Dimensions L x W x H | 7"L x 2.3"W x 0.6"H |
| Item Weight | 12.8 ounces |
| Material | Stone |
| Material Type | Stone |
| Product Dimensions | 7"L x 2.3"W x 0.6"H |
S**E
Aggressive fast cutting stone but not a 1k, more like 320 grit.
Quick cutting stone that doesn't load up and has a very high content of aluminum oxide to binder ratio so the stone cuts fast. However this stone is no where close to a 1k grit stone, it's FAR more aggressive that 1000 grit, more like a 320 grit stone, the scratch pattern it leaves is very close to what my shapton glass 320HR leaves. So if you need a cheap and aggressive fast cutting stone to do light reprofiling and minor damage correction this is a great value. The binder isn't super hard so it releases abrasive pretty quickly and as a result wull wear pretty quickly but for 5 bucks it's great. It will work well for your needs of removing steel but is by no means a finish stone unless you want a very aggressive/toothy edge. For 5 bucks it's so good I ordered two more as it's nice to have low cost stones that are capable of removing steel pretty quickly but without causing deep gouges in the scratch pattern and that's exactly what this stone does. It will wear pretty quickly so expect to need to flatten if fairly regularly if your using it to do reprofiling or sharpening out chips etc. It's a very friable stone and that's why it cuts so fast as it releases abrasive very quickly and highly friable stones wear pretty quick it's just the nature of the beast. For 5.xx dollars it's an incredibly good lower grit aggressive stone just don't believe for a second that it's any where near 1k grit. The stone doesn't load up very badly but because it's so poreus and friable it does need water added really quickly. Soak it for about 15 mins ahead of time and then when sharpening you will need to spray water on it quite often, if you don't spray more water on it enough that will cause it to load up. So in a but shell, great fast cutting and aggressive lower mid grit stone for 5 bucks but no where near 1k but rather in the 320-400 grit range.
A**D
Keep it sharp
This type of sharpening has been used for thousands of years and still used today. Basic and Classic. Great price for a household necessity.
B**H
Tool Sharpener
Great Sharpener at a great price. Works well.
D**L
Okay for the price
Decent stone. Grit is consistent, but, soft, not much feedback and wears rapidly. Okay for the price.
B**N
Be sure to soak in water before each use. Good product.
Works quite well. Soak it in water for 10 minutes first. Sharpening with pull-away method makes her razor sharp
J**M
easy to use for work knives
A good sharping stone for work knives. both sides are rough, so don't expect to get a clean finish- it sharpens nicely, but not as well as a two sided whetstone- the type with a finer stone on one side. but good for what it does
A**R
funcionabilidad
buena , hubiese preferido q sea de otra numeracion pero si sirve , es decir el grano para lijar q sea mas grueso
W**O
Piedra de Afilar.
Buenas tardes. Compré esta piedra de afilar de una sola cara. Me gusta; la he usado recién. Me parece buena, hasta ahora me funciona bien. Gracias al vendedor y a Amazon.
Trustpilot
1 week ago
2 months ago