{"title":"Coarse Whetstones (200–600 Grit): The Foundation for Repair and Reset","description":"\u003cp\u003eCoarse whetstones in the \u003cstrong\u003e200–600 grit range\u003c\/strong\u003e are the starting point for serious knife maintenance. These stones are designed for \u003cstrong\u003eheavy material removal\u003c\/strong\u003e, making them essential when a blade is damaged, extremely dull, or in need of a complete edge reset. If your knife has chips, rolls, flat spots, or hasn’t been sharpened in months (or years), a coarse stone is where proper sharpening begins.\u003c\/p\u003e\n\u003cp\u003eAt this grit level, the stone works quickly, removing fatigued steel to establish a \u003cstrong\u003efresh, clean edge geometry\u003c\/strong\u003e. This is especially important for Japanese knives, which rely on precise angles and thin profiles to perform at their best. Attempting to sharpen a damaged blade on a finer stone often leads to frustration, inconsistent results, and unnecessary wear—coarse stones solve that problem efficiently and intentionally.\u003c\/p\u003e\n\u003cp\u003eBecause coarse stones remove steel aggressively, they are not meant for routine touch-ups. Instead, they serve as \u003cstrong\u003ecorrective tools\u003c\/strong\u003e, preparing the blade for refinement on medium and fine stones. Many professional chefs and sharpeners view coarse stones as a form of structural maintenance—used sparingly, but critically, when the knife truly needs intervention.\u003c\/p\u003e\n\u003cp\u003eCommon uses for coarse whetstones include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRepairing small chips or edge damage\u003c\/li\u003e\n\u003cli\u003eRestoring severely dull knives\u003c\/li\u003e\n\u003cli\u003eResetting bevel angles\u003c\/li\u003e\n\u003cli\u003eThinning behind the edge\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCoarse stones require controlled pressure and proper technique, but when used correctly, they extend the life of your knife by restoring performance rather than forcing repeated passes on finer stones. Flattening is especially important at this grit, as uneven wear can quickly affect accuracy.\u003c\/p\u003e\n\u003cp\u003eFor anyone maintaining high-quality knives, a coarse whetstone is not optional—it’s the \u003cstrong\u003efirst step toward precision sharpening \u003c\/strong\u003eand long-term blade health.\u003c\/p\u003e","products":[{"product_id":"double-sided-whetstone-toishi-with-base-combination-grit-220-and-800","title":"Double sided Japanese Whetstone (Toishi) with Base - Combination Grit 220 and 800","description":"\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: left;\"\u003eThis is a double sided Japanese Whetstone (Toishi) with base useful when recontouring a knife or fixing a chipped knife. The sharpening stone is a combination Grit 220 (Green side) and 800 (Red side).\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cbr\u003e\n\u003cdiv style=\"text-align: left;\"\u003eThe Japanese Whetstone (Toishi) manufacturer Matsunaga with the brand name King is from Osaka Japan. They are the oldest and best-known \u003cspan\u003eToishi \u003c\/span\u003emaker of Japan.\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003eThis is a double sided Whetstone (Toishi) with Combination Grit 220 and 800 which is rough (green side)and medium. (red side) Rough side is for \u003cspan\u003erepairing a large edge that may include chips or cracks.\u003c\/span\u003e Medium side is \u003cspan\u003efor a middle sharpening point after using the rough grinding stone.  This will decrease the grinding pattern on the metal after a rough stone. \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003e\u003cspan\u003e\u003cspan style=\"text-decoration: underline;\"\u003ePlease read before use\u003c\/span\u003e:\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003e\u003cspan\u003e1.Soak in water the whetstone (Toishi) both side about 3 minutes before use.\u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cb\u003e2. While using the whetstone, add little water on the surface as needed. \u003c\/b\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003e\u003cspan\u003e3.After use, let the whetstone dry very well. Otherwise, the whetstone might be crack or mold. Put it into the plastic case once finished.  \u003c\/span\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003eWeight: 753 g \u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cspan\u003eWhetstone Length: 185\u003c\/span\u003e\u003cspan\u003e mm\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cspan\u003eWhetstone Width: \u003c\/span\u003e63 mm\u003cbr\u003e\u003cspan\u003eWhetstone Thickness\u003c\/span\u003e: 25\u003cspan\u003e mm\u003c\/span\u003e\n\u003c\/div\u003e","brand":"King","offers":[{"title":"#220\/800","offer_id":43332732879098,"sku":"AH-22325","price":69.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0077\/4399\/5970\/files\/accessories-double-sided-japanese-whetstone-toishi-with-base-combination-grit-220-and-800-1.jpg?v=1698699107"},{"product_id":"japanese-whetstone-toishi-sun-tiger-grit-200-rough-whetstone","title":"Sun Tiger Kongo Japanese Toishi Sharpening Stone - Grit #200","description":"\u003cdiv style=\"text-align: left;\"\u003eJapanese Whetstone (Toishi) Grit 200\u003c\/div\u003e\n\u003cbr\u003e\n\u003cdiv style=\"text-align: left;\"\u003eThe Japanese Whetstone (Toishi) manufacturer Sun Tiger made in Japan. \u003c\/div\u003e\n\u003cbr\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cspan\u003eThis whetstone is very abrasive and best for reshaping or repairing chips. Please be note that the #200-300 grit stones will shave off a lot of the material. We do not recommend beginner sharpeners to use these stones.\u003c\/span\u003e\u003c\/div\u003e\n\u003cbr\u003e\n\u003cdiv style=\"text-align: left;\"\u003eWeight: 502 g \u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cspan\u003eWhetstone Length: 205\u003c\/span\u003e\u003cspan\u003e mm\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cspan\u003eWhetstone Width: 51\u003c\/span\u003e mm\u003cbr\u003e\u003cspan\u003eWhetstone Thickness\u003c\/span\u003e: 28\u003cspan\u003e mm\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003c\/div\u003e","brand":"Sun Tiger","offers":[{"title":"#200","offer_id":43333059772666,"sku":"AH-22001","price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0077\/4399\/5970\/files\/accessories-japanese-whetstone-toishi-kongo-grit-200-1.jpg?v=1698703298"},{"product_id":"shapton-japanese-toishi-sharpening-stone-with-base-grit-120","title":"Shapton Japanese Toishi Sharpening Stone with Base - Grit #120","description":"\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: left;\"\u003eJapanese Tosihi Sharpening Stone \/ Whetstone with base - Grit #120\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003eThe Shapton Japanese Whetstone (Toishi) manufacturer Shapton made in Japan. \u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003eThis is a single sided Whetstone (Toishi) with a very rough 120 grit, a good starting point for fixing a knife that has a chip or re-shaping a knife. \u003c\/div\u003e\n\u003cbr\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cdiv\u003e\u003cspan\u003eThe Shapton sharpening stones are great for working on double bevel western style blades.\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cstrong\u003e\u003cspan\u003e\u003cspan style=\"text-decoration: underline;\"\u003eDO NOT soak in water. Sprinkle with water\u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cb\u003e\u003c\/b\u003e\u003cstrong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003eWeight: 1044 g \u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cspan\u003eWhetstone Length: 210\u003c\/span\u003e\u003cspan\u003e mm\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cspan\u003eWhetstone Width: 70\u003c\/span\u003e mm\u003cbr\u003e\u003cspan\u003eWhetstone Thickness\u003c\/span\u003e: 24\u003cspan\u003e mm\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: center;\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"Shapton","offers":[{"title":"#120","offer_id":44367675162874,"sku":"AH-49010","price":110.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0077\/4399\/5970\/files\/accessories-shapton-japanese-sharpening-stone-with-base-grit-120-1.jpg?v=1698704618"},{"product_id":"sakai-takayuki-japanese-toishi-sharpening-stone-grit-400","title":"Sakai Takayuki Japanese Toishi Sharpening Stone - Grit #400","description":"\u003cdiv style=\"text-align: center;\"\u003e\n\u003cdiv style=\"text-align: left;\"\u003eThis is a single sided 400 grit Whetstone (Toishi) without a base. \u003cspan data-mce-fragment=\"1\"\u003e This is ideal for removing small chips or reshaping a knife.  \u003c\/span\u003e\u003cspan\u003e\u003cspan\u003eIf you need a base check out our\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/hasuseizo.com\/products\/naniwa-whetstone-sharpening-stone-holder-with-adjustable-no-slip-base\"\u003eadjustable base here\u003c\/a\u003e.\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003eThe Sakai Takayuki Japanese Tosihi Sharpening Stone \/ Whetstone is made in Japan. \u003c\/span\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cstrong\u003e\u003cspan\u003e\u003cspan style=\"text-decoration: underline;\"\u003eSoak in water for 2 min \u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003eJapanese Toishi Sharpening Stone - Grit #400\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003eWeight: 751 g \u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cspan\u003eWhetstone Length: 205\u003c\/span\u003e\u003cspan\u003e mm\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cspan\u003eWhetstone Width: 75\u003c\/span\u003e mm\u003cbr\u003e\u003cspan\u003eWhetstone Thickness\u003c\/span\u003e: 25\u003cspan\u003e mm\u003c\/span\u003e\n\u003c\/div\u003e","brand":"Sakai Takayuki","offers":[{"title":"#400","offer_id":45627803271418,"sku":"AH-22341","price":75.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0077\/4399\/5970\/files\/SakaiTakayukiToishi4001.jpg?v=1712901215"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0077\/4399\/5970\/collections\/accessories-japanese-whetstone-toishi-kongo-grit-200-2.jpg?v=1767207143","url":"https:\/\/hasuseizo.com\/collections\/coarse-whetstones-200-600-grit-the-foundation-for-repair-and-reset.oembed","provider":"Hasu-Seizo","version":"1.0","type":"link"}