Shapton Glass Stone 4000 Grit HC Sharpening Stone for Carbon Knives

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Shapton Glass Sharpening Stone HC, 4000 Grit, #50603

This stone is optimized for sharpening carbon steel knives.

210mm x 70mm, 5mm thick (total thickness is 10mm: 5mm of abrasive bonded to 5mm glass plate). 

Shapton GlassStones are very fast cutting and long-lasting. The ceramic abrasive is permanently bonded to a glass plate so the whole unit is very flat and very strong. The abrasive is extremely consistent and dense so you have a great feel and can produce very precise and clean edges, plus these have the convenience of splash-and-go sharpening (do not soak these stones).

The Shapton stone holder (sold separately) is designed to fit these stones perfectly and is quite heavy and tall, providing a great workstation. The more affordable Naniwa universal/adjustable stone holder also works fine for these stones.

Made in Japan.

Be sure to check out the Shapton FAQ.

Customer Reviews

Based on 2 reviews
Charles Archdekin

Used stone works well for carbon knives

Great for Maintaining the Carbon Steel Blade

I have the regular Shapton Glass 4000 and this HC one. The HC one feels a bit harder than the regular one. So it requires less lapping than the regular one. I used the 4000 to thinner the blade and the 8000 to finish the edge on my Aogami Blue Super/White knives.
I used to sharpen my knives only when I felt they were dull. It took me around 45 minutes and stepping from 500 grits to 1000/2000 grits and finished with 6000/8000/12000 grits depending on the knives. The hard high carbon steel knives were easier to sharpen than the softer ones but definitely takes a longer time.
Using the combination of these two stones for less than 10 minutes every few weeks (depends on how often you use your knives) should be able to keep the knives on factory performance all the time.

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