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The Naniwa Super Stone is an exciting Japanese Waterstone for sharpening knives and tools. Like all waterstones, these stones require water but unlike traditional Japanese Waterstones, these don’t require soaking ahead of time. To use these stones, just apply a bit of water to the surface and you’re ready to sharpen.
Each stone measures 8 1/4" long, 2 3/4" wide and 3/8" thick. Each stone is bonded to a solid base. The base provides plenty of knuckle clearance when sharpening knives and is solidly built for sharpening tools.
These stones sharpen very quickly. With many of the modern steel alloys, speed of sharpening can be an important factor when considering a sharpening stone. These work well on tough tool steels such as A2 or D2 and very hard stainless alloys popular in Japanese and western cutlery.
We have been very impressed with the quality of these stones. Whether you're purchasing the very coarse 220 or all the way up to the extremely fine 12,000 grit, we’ve found these stones to be very consistently graded.
If you’ve considered purchasing a set of Japanese Waterstones we would certainly recommend the Naniwa Super Stones. Below we’ve described the grits in a little more detail to help you with your grit selections.
If you want to get down to the real details of this stone, this stone is made with a resin bond. This resin bond gives this stone two of its main features. First, the resin bond allows for a higher level of abrasive particles compared with less expensive methods of stone bonding. The higher abrasive levels contribute to the speed of sharpening. The second, these resin bonded stones don't require a soaking in water prior to use, just a sprinkle on the top is all that is needed.
Made in Japan.
Available in the following Grits
400 Coarse Grit - This is a coarse stone that is about as coarse as you’ll need if you never have an edge that is too dull or damaged.
2000 Fine Grit - This is fine enough for many applications. In the kitchen, this stone will leave your knife with an edge better than most factory edges. At this level, this stone is considerably finer than any stones marked "fine" available in stores.
3000 Extra Fine Grit - This is an good final stone. Many people will use this after the 1000 grit stone. This stone is fine enough to be used prior to the 8000 grit stone.
5000 Very Fine Grit - This is a good final grit for many tools and knives. This stone works wonderfully well after you've used the 1000 grit. This stone is also fine enough to be a good stone prior to the 10,000 or 12,000 grit.
8000 Extremely Fine Grit - This stone is extremely fine. This is a wonderful final stage for most knives or tool edges. We recommend using this after the 2000 or finer grits.
12,000 Mirror Polish Grit - If you want a truly superb edge, this grit is so fine that your edge will shine like a mirror. After using this stone, the edge will not appear to have any grit marks at all.
Q. Do I need to purchase every single grit?
A. No, having every grit it not necessary for proper sharpening. We stock every grit so you can customize your purchase to your need. We often suggest starting your decision at your finest grit and then skip grits until you get to your coarsest grit. You can do a good job with 3 stones, but 4 is the most common for a complete set. We have come up with a few examples that will fit most budgets and will work very well together.
Q. I've heard that these stone sharpen quickly. Does that mean I should skip the coarser stones?
A. It is a very common mistake to purchase the finer stone and not purchase the coarser stone (the wisdom being that you can just spend more time on the finer stone). A 400 stone will sharpen many times (more than 10 times) quicker than a finer stone. Given the lower price of the coarser stone we consider them a good investment.
Q. Do Naniwa Super Stones require flattening?
A. Over time, all waterstones require flattening. The bonding material of the stone will wear, providing fresh abrasive material. This is why waterstones sharpen so quickly. This is also why they need to be flattened periodically. Naniwa Flattening Stone.