{"product_id":"naniwa-goken-aramusha-220","title":"Naniwa Gouken Aramusha #220 Coarse Whetstone","description":"\u003ch2\u003eBefore Refining the Edge, Restore the Geometry\u003c\/h2\u003e\n\u003cp\u003eNot every dull knife can be properly restored simply by sharpening the cutting edge.\u003c\/p\u003e\n\u003cp\u003eLarge chips, distorted profiles caused by years of sharpening, excessive thickness behind the edge, or blades that require significant thinning all demand something more fundamental:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ematerial must first be removed where necessary to restore the blade geometry.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eNaniwa Gouken Aramusha #220\u003c\/strong\u003e is a Japanese-made coarse whetstone designed for exactly this kind of demanding work.\u003c\/p\u003e\n\u003cp\u003eWith the aggressive cutting performance of its #220 PA abrasive, strong resistance to dishing, and substantial \u003cstrong\u003e205 × 75 × 50 mm\u003c\/strong\u003e dimensions, the Aramusha is built for serious coarse sharpening and corrective work.\u003c\/p\u003e\n\u003cp\u003eThis is not simply a stone for touching up a dull edge.\u003c\/p\u003e\n\u003cp\u003eIt is a coarse stone for \u003cstrong\u003eworking on the geometry of the blade itself.\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eSerious Correction Requires the Right Coarse Stone\u003c\/h2\u003e\n\u003cp\u003eRemoving a significant chip.\u003c\/p\u003e\n\u003cp\u003eThinning a blade that has become too thick behind the edge.\u003c\/p\u003e\n\u003cp\u003eCorrecting a profile that has gradually changed after years of sharpening.\u003c\/p\u003e\n\u003cp\u003eThese jobs require substantial material removal. Starting with a stone that is too fine makes the work unnecessarily slow and asks the stone to perform a task it was never designed to do.\u003c\/p\u003e\n\u003cp\u003eThe Aramusha #220 is designed to \u003cstrong\u003eremove steel efficiently during the early stages of substantial sharpening and restoration work.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIt can be used with Japanese and Western kitchen knives, as well as other cutting tools including planes, chisels, carving tools, and various carbon, stainless, and specialty steels.\u003c\/p\u003e\n\u003cp\u003eOnce the necessary geometry has been established on the coarse stone, the sharpening progression can continue through medium and finer stones as required.\u003c\/p\u003e\n\u003cp\u003eThe quality of a finished edge does not begin with the finishing stone.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIt begins with getting the geometry right.\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003ePA Abrasive — Cutting Performance with Strong Surface Retention\u003c\/h2\u003e\n\u003cp\u003eThe Gouken Aramusha #220 uses \u003cstrong\u003ePA abrasive\u003c\/strong\u003e and is designed to combine strong cutting performance with good resistance to dishing.\u003c\/p\u003e\n\u003cp\u003eThat balance matters in a coarse stone.\u003c\/p\u003e\n\u003cp\u003eWhen thinning a blade or correcting geometry across a large surface, the stone itself is continuously wearing as it removes steel. If the sharpening surface dishes too quickly, maintaining the intended blade geometry becomes increasingly difficult.\u003c\/p\u003e\n\u003cp\u003eThe Aramusha is designed not only to remove material efficiently, but also to maintain its working surface well during demanding coarse sharpening.\u003c\/p\u003e\n\u003cp\u003eFor serious corrective work, both qualities matter.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eWhy 50 mm of Thickness Matters\u003c\/h2\u003e\n\u003cp\u003eOne of the most distinctive features of the Aramusha #220 is its substantial size:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e205 × 75 × 50 mm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThat \u003cstrong\u003e50 mm thickness\u003c\/strong\u003e has real practical value.\u003c\/p\u003e\n\u003cp\u003eA coarse whetstone is a consumable tool. As it removes steel from the blade, the stone itself is gradually worn away and periodically flattened.\u003c\/p\u003e\n\u003cp\u003eFor occasional sharpening, this may not seem important.\u003c\/p\u003e\n\u003cp\u003eFor repeated chip repair, thinning, geometry correction, and restoration work, however, stone consumption becomes a significant consideration.\u003c\/p\u003e\n\u003cp\u003eThe substantial thickness of the Aramusha provides considerably more usable stone for those who regularly perform demanding coarse sharpening.\u003c\/p\u003e\n\u003cp\u003eIt is a stone designed to be \u003cstrong\u003eused — and used seriously.\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eRecommended For\u003c\/h2\u003e\n\u003cp\u003eThe Naniwa Gouken Aramusha #220 is particularly suitable for work requiring significant material removal, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRepairing large chips\u003c\/li\u003e\n\u003cli\u003eCorrecting blade profiles and geometry\u003c\/li\u003e\n\u003cli\u003eThinning excessively thick areas behind the edge\u003c\/li\u003e\n\u003cli\u003eRestoring geometry altered by years of sharpening\u003c\/li\u003e\n\u003cli\u003eCoarse sharpening before progressing to medium stones\u003c\/li\u003e\n\u003cli\u003eMajor maintenance of Japanese and Western kitchen knives\u003c\/li\u003e\n\u003cli\u003eCoarse sharpening of planes, chisels, and carving tools\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIts purpose goes beyond simply restoring sharpness.\u003c\/p\u003e\n\u003cp\u003eIt helps establish the \u003cstrong\u003ecorrect foundation for everything that follows in the sharpening process.\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eHow to Use\u003c\/h2\u003e\n\u003cp\u003eThe Gouken Aramusha #220 is a \u003cstrong\u003ewater-soaking whetstone\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eBefore use, soak the stone in water for approximately \u003cstrong\u003e5–10 minutes\u003c\/strong\u003e, allowing it to absorb sufficient water.\u003c\/p\u003e\n\u003cp\u003eDuring sharpening, add water as necessary and keep the working surface appropriately wet.\u003c\/p\u003e\n\u003cp\u003eAfter use, thoroughly rinse away swarf and sharpening residue, then allow the stone to dry naturally in a well-ventilated area away from direct sunlight before storage.\u003c\/p\u003e\n\u003cp\u003eAvoid rapid drying and extreme temperature changes.\u003c\/p\u003e\n\u003cp\u003eAlthough the Aramusha is designed for strong surface retention, every coarse stone will gradually wear during use.\u003c\/p\u003e\n\u003cp\u003eFor thinning and geometry correction in particular, surface flatness directly affects the accuracy of the work. Flatten the stone whenever necessary to maintain a true working surface.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eProduct:\u003c\/strong\u003e Naniwa Gouken Aramusha\u003cbr\u003e\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Naniwa Abrasive Mfg. Co., Ltd.\u003cbr\u003e\u003cstrong\u003eSeries:\u003c\/strong\u003e Gouken\u003cbr\u003e\u003cstrong\u003eModel:\u003c\/strong\u003e QA-0331\u003cbr\u003e\u003cstrong\u003eGrit:\u003c\/strong\u003e #220\u003cbr\u003e\u003cstrong\u003eType:\u003c\/strong\u003e Coarse Whetstone\u003cbr\u003e\u003cstrong\u003eAbrasive:\u003c\/strong\u003e PA\u003cbr\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e 205 × 75 × 50 mm\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e Approx. 1.7 kg — individual variation may occur\u003cbr\u003e\u003cstrong\u003eJAN:\u003c\/strong\u003e 4955571237033\u003cbr\u003e\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e Japan\u003c\/p\u003e","brand":"YAMANI SHODOSHIMA","offers":[{"title":"Default Title","offer_id":46615993843898,"sku":null,"price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/6750\/4826\/files\/IMG-3939.png?v=1789050321","url":"https:\/\/yamani-shodoshima.com\/products\/naniwa-goken-aramusha-220","provider":"YAMANI SHODOSHIMA","version":"1.0","type":"link"}