{"product_id":"diamond","title":"Double-Sided Diamond Whetstone Flattening Plate #120 \/ #180","description":"\u003ch2 class=\"PDq2pG_selectionAnchorContainer\"\u003e\n\u003cspan style=\"text-decoration: underline;\"\u003e\u003cem\u003eWhen a Whetstone Needs More Than Routine Maintenance\u003c\/em\u003e\u003c\/span\u003e\u003cspan class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h2\u003e\n\u003cp\u003eA whetstone does not always wear evenly.\u003c\/p\u003e\n\u003cp\u003eWith repeated sharpening, the center may become hollow, certain areas may wear faster than others, and eventually the surface can become too uneven for accurate sharpening.\u003c\/p\u003e\n\u003cp\u003eAt that point, the stone needs more than light surface maintenance.\u003c\/p\u003e\n\u003cp\u003eThe \u003cstrong\u003eDouble-Sided Diamond Whetstone Flattening Plate #120 \/ #180\u003c\/strong\u003e is designed for \u003cstrong\u003eefficient flattening, substantial surface correction, and restoring noticeably dished or uneven whetstones\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIts coarse electroplated diamond surfaces remove stone material efficiently, helping bring a worn sharpening stone back to a flat and reliable working surface.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCorrect the surface. Restore the foundation. Then sharpen accurately again.\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cem\u003eTwo Coarse Surfaces. Two Levels of Correction.\u003c\/em\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eThe double-sided electroplated diamond construction provides two levels of coarse surface correction in a single substantial plate.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e#120 — Fast Correction\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe #120 diamond surface provides strong cutting action when significant material needs to be removed.\u003c\/p\u003e\n\u003cp\u003eIt is particularly useful for restoring whetstones that have developed noticeable dishing, uneven wear, or surface irregularities that require efficient correction.\u003c\/p\u003e\n\u003cp\u003eRather than spending unnecessary time slowly working down the high areas of a badly worn stone, #120 allows you to establish flatness more efficiently.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e#180 — Controlled Correction\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe #180 side provides a slightly more controlled abrasive action while retaining the cutting ability required for effective flattening.\u003c\/p\u003e\n\u003cp\u003eIt can be used for less severe correction or as the next stage after #120 when greater control over the resulting stone surface is desired.\u003c\/p\u003e\n\u003cp\u003eTogether, the two surfaces allow you to move from \u003cstrong\u003estrong initial correction to more controlled flattening\u003c\/strong\u003e using a single tool.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cem\u003eA Dished Stone Changes More Than the Stone\u003c\/em\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eAn uneven whetstone does not simply look worn.\u003c\/p\u003e\n\u003cp\u003eIt changes the surface against which your knife is being sharpened.\u003c\/p\u003e\n\u003cp\u003eAs dishing becomes more pronounced, maintaining consistent blade-to-stone contact becomes increasingly difficult. This can influence bevel geometry, pressure distribution, and the consistency of your sharpening.\u003c\/p\u003e\n\u003cp\u003eThe problem becomes particularly noticeable when working with larger contact areas.\u003c\/p\u003e\n\u003cp\u003eJapanese single-bevel knives, wide bevels, thinning work, and geometry correction all depend heavily on having a reliable reference surface beneath the blade.\u003c\/p\u003e\n\u003cp\u003eIf the reference surface is wrong, the work performed on it can gradually become wrong as well.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBefore correcting the blade, make sure the surface beneath it is correct.\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cem\u003eDesigned Specifically for Whetstone Flattening\u003c\/em\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eThis is not simply a general-purpose diamond abrasive plate.\u003c\/p\u003e\n\u003cp\u003eThese diamond flattening tools are \u003cstrong\u003edeveloped specifically for maintaining whetstones used in knife sharpening\u003c\/strong\u003e, with the working surface designed to provide the flatness required for this purpose.\u003c\/p\u003e\n\u003cp\u003eThat distinction matters.\u003c\/p\u003e\n\u003cp\u003eWhen a flattening tool is used to establish the reference surface of a sharpening stone, the accuracy of the tool itself directly influences the surface you create.\u003c\/p\u003e\n\u003cp\u003eA plate intended for general grinding or material removal may contain diamond abrasive, but that alone does not necessarily make it suitable as a reference for precision whetstone maintenance.\u003c\/p\u003e\n\u003cp\u003eHere, the diamond surface is designed with \u003cstrong\u003eknife-sharpening whetstone flattening in mind\u003c\/strong\u003e, helping restore a consistent working plane from which accurate sharpening can begin.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe tool used to create a flat stone must itself be designed for the job.\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cem\u003eRestore a Worn Stone Efficiently\u003c\/em\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eWhen a whetstone has become substantially uneven, restoring flatness requires removing the high areas until the entire working surface reaches the same plane.\u003c\/p\u003e\n\u003cp\u003eThat means material must be removed.\u003c\/p\u003e\n\u003cp\u003eTrying to perform substantial correction with an abrasive that cuts too slowly can turn a straightforward maintenance job into a lengthy process.\u003c\/p\u003e\n\u003cp\u003eThe coarse \u003cstrong\u003e#120 \/ #180 electroplated diamond surfaces\u003c\/strong\u003e are designed to make that correction more efficient.\u003c\/p\u003e\n\u003cp\u003eThe objective is not aggressive material removal for its own sake.\u003c\/p\u003e\n\u003cp\u003eIt is to \u003cstrong\u003eremove the material necessary to restore an accurate working surface efficiently and with control.\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cem\u003eGive Valuable Whetstones a Second Working Life\u003c\/em\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eA dished whetstone is not necessarily a finished whetstone.\u003c\/p\u003e\n\u003cp\u003eEven stones with considerable usable thickness remaining can become frustrating to sharpen on simply because their surfaces have been allowed to wear unevenly.\u003c\/p\u003e\n\u003cp\u003eProper flattening can restore that working surface and allow the remaining stone to continue doing the job it was designed to do.\u003c\/p\u003e\n\u003cp\u003eThis is especially important with frequently used professional stones and valuable sharpening stones, where replacing a stone simply because it has become uneven would be unnecessary.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA worn surface can be corrected. A good stone may still have years of work left in it.\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cem\u003eParticularly Useful for Geometry and Restoration Work\u003c\/em\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eCoarse flattening becomes especially important for sharpeners who regularly perform:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSingle-bevel knife maintenance, wide-bevel sharpening, thinning, bevel correction, knife restoration, and other geometry-focused work.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThese processes often involve broad areas of steel contacting the stone and can require the use of coarse whetstones when substantial steel removal is necessary.\u003c\/p\u003e\n\u003cp\u003eA hollow or uneven whetstone can therefore influence the blade geometry more significantly than it might during a simple edge touch-up.\u003c\/p\u003e\n\u003cp\u003eRestoring the stone to a reliable plane gives the sharpener a consistent reference from which accurate work can begin.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGood geometry starts with a trustworthy surface.\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cem\u003eHow We Use It at YAMANI\u003c\/em\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eThere is no single correct way to use a diamond flattening plate. Different sharpeners naturally develop their own preferences depending on the stones they use, their technique, and the work they perform.\u003c\/p\u003e\n\u003cp\u003eAs one practical example, at YAMANI, we personally use the \u003cstrong\u003e#120 side primarily for flattening coarse whetstones\u003c\/strong\u003e, including stones in approximately the \u003cstrong\u003e#180, #220, and #400 range\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThese coarse stones are typically brought into use when substantial steel removal is required — for example, during \u003cstrong\u003emajor knife restoration, significant repairs, thinning, or geometry correction\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eFor most home users and even many professional chefs, this type of heavy correction may only be required occasionally. In a professional sharpening and restoration environment, however, coarse stones play a much greater role.\u003c\/p\u003e\n\u003cp\u003eThere is also an important point to understand:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDiamond flattening plates are consumable tools.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFlattening coarse whetstones is demanding on an electroplated diamond surface. With repeated use, the diamond surface itself gradually wears and its cutting efficiency will eventually decline.\u003c\/p\u003e\n\u003cp\u003eIt should therefore not be considered a tool that maintains its original cutting performance indefinitely.\u003c\/p\u003e\n\u003cp\u003eService life varies considerably depending on the stones being flattened, frequency of use, pressure, technique, and the amount of material being removed.\u003c\/p\u003e\n\u003cp\u003eIn our own professional use, we monitor the cutting performance of the plate and \u003cstrong\u003ereplace it when its flattening efficiency has noticeably declined\u003c\/strong\u003e. Under demanding professional use, this may mean replacement around once a year, but this should be regarded as our practical experience rather than a fixed replacement schedule.\u003c\/p\u003e\n\u003cp\u003eFor occasional home or chef use, where coarse stone correction may only be required from time to time, the practical service life can naturally be considerably different.\u003c\/p\u003e\n\u003cp\u003eOur method is simply one reference point.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eExperiment with your stones, understand how they respond, and develop the maintenance routine that best suits your own sharpening system.\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cem\u003eSubstantial Weight. Stable, Efficient Flattening.\u003c\/em\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eAt approximately \u003cstrong\u003e701 g\u003c\/strong\u003e, this is a substantial diamond flattening plate.\u003c\/p\u003e\n\u003cp\u003eIts weight provides a solid, stable feel during use, helping maintain controlled contact while removing material from the whetstone.\u003c\/p\u003e\n\u003cp\u003eWith dimensions of \u003cstrong\u003e223 × 65 × 6 mm\u003c\/strong\u003e, the plate provides a generous working surface for commonly used Japanese whetstones and allows the diamond surface to work efficiently across the stone.\u003c\/p\u003e\n\u003cp\u003eFor significant stone correction, this combination of size, weight, and coarse electroplated diamond surfaces makes it a practical tool for a serious sharpening setup.\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cem\u003eWhy YAMANI Selects It\u003c\/em\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eAt YAMANI, we regard stone maintenance as part of sharpening itself.\u003c\/p\u003e\n\u003cp\u003eWhen restoring knife geometry, correcting wide bevels, or maintaining traditional Japanese single-bevel knives, the accuracy of the whetstone surface directly influences the accuracy of the work performed on the blade.\u003c\/p\u003e\n\u003cp\u003eFor a stone that has already developed significant dishing or uneven wear, the surface first needs to be \u003cstrong\u003ecorrected efficiently and brought back to a reliable plane\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe fact that this tool is developed specifically for maintaining knife-sharpening whetstones is also important to us. A diamond abrasive alone is not enough — for flattening, the plate itself must provide a reliable reference surface for the stone being corrected.\u003c\/p\u003e\n\u003cp\u003eThe double-sided \u003cstrong\u003e#120 \/ #180 electroplated diamond construction\u003c\/strong\u003e provides two useful levels of coarse correction — #120 for efficient initial material removal and #180 for more controlled flattening.\u003c\/p\u003e\n\u003cp\u003eJust as importantly, we regard the flattening plate itself as a working tool. Its diamond surface will gradually wear through use, particularly when it is regularly used on coarse stones. Recognizing when a tool has lost its efficiency — and replacing it when necessary — is part of maintaining a reliable sharpening system.\u003c\/p\u003e\n\u003cp\u003eIt is a straightforward tool built around an important principle:\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eYou cannot accurately restore a blade on a surface that first needs restoring itself.\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch2\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cem\u003eSpecifications\u003c\/em\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eProduct:\u003c\/strong\u003e Double-Sided Diamond Whetstone Flattening Plate\u003cbr\u003e\u003cstrong\u003eAbrasive:\u003c\/strong\u003e Electroplated Diamond\u003cbr\u003e\u003cstrong\u003eGrit:\u003c\/strong\u003e #120 \/ #180\u003cbr\u003e\u003cstrong\u003eSides:\u003c\/strong\u003e Double-Sided\u003cbr\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e 223 × 65 × 6 mm\u003cbr\u003e\u003cstrong\u003eWeight:\u003c\/strong\u003e Approx. 701 g\u003cbr\u003e\u003cstrong\u003ePrimary Use:\u003c\/strong\u003e Whetstone flattening, substantial surface correction, and restoration\u003cbr\u003e\u003cstrong\u003e#120 Side:\u003c\/strong\u003e Fast correction \/ significant material removal\u003cbr\u003e\u003cstrong\u003e#180 Side:\u003c\/strong\u003e Controlled coarse flattening \/ surface correction\u003cbr\u003e\u003cstrong\u003eDesign Purpose:\u003c\/strong\u003e Specifically developed for flattening whetstones used in knife sharpening\u003cbr\u003e\u003cstrong\u003eWear \u0026amp; Replacement:\u003c\/strong\u003e The electroplated diamond surface gradually wears with use. Service life varies depending on frequency, pressure, technique, and the type and condition of the whetstones being flattened.\u003c\/p\u003e","brand":"YAMANI SHODOSHIMA","offers":[{"title":"Default Title","offer_id":46550308978874,"sku":null,"price":63.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0694\/6750\/4826\/files\/AA970F21-67F8-4D9B-ABF3-5B475D33DF92.jpg?v=1788537111","url":"https:\/\/yamani-shodoshima.com\/products\/diamond","provider":"YAMANI SHODOSHIMA","version":"1.0","type":"link"}