Hapstone Premium CBN Sharpening Stones
Durable CBN stones with smooth cutting action for sharpening modern high-hardness steels and ceramic knives.
Cutting
Controlled sharpening
Cubic boron nitride provides efficient steel removal while maintaining smooth and controlled cutting behavior during sharpening.
Feedback
Comfor
4.8
53 ratings
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I bought this to reprofile abused blades. The little bit I've used it, it performs as anticipated. I don't have enough use on it yet to assess longevity.
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James · October 30, 2026
I do deep reprofiling of chef’s knives. Sometimes I have to take the entire micro bevel off to a 90° dead flat geometry in order to start. Sometimes it’s really bad chipping. But mostly it’s chef’s sharpening these knives themselves over a decade - or more! - since purchasing it. I routinely come across Japanese western style knives that have a factory micro bevel set to 12° only to find it hit my table with 30° angles. So 60° total. They sharpen it and it feels dull.
The Hapstone 80grit is a good stone for serious restoration. I’m extremely happy with this really useful stone in my tool kit. Fast shipping and excellent customer service. I had a question and they emailed back in a few days with extremely thorough and actionable data and advice.
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Alexi · October 8, 2026
I have the 2k and 5k , after flattening both 4 times they both started working great. The picture attached is only up to 5k no stropping .