{"product_id":"mirka-ceramic-supreme-4-in-p36-fiber-disc-for-cutting-and-grinding-stainless-steel-25-pack-63-438-036","title":"Mirka Ceramic Supreme 4-in. P36 Fiber Disc for Cutting and Grinding Stainless Steel, 25-Pack (63-438-036)","description":"\u003csection data-aplus\u003e\n\u003cdetails id=\"product-features\" class=\"acc\" open\u003e\n  \u003csummary\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"features\"\u003e\n      \u003cdiv class=\"card\"\u003e\n        \u003cdiv class=\"card-inside\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/material.svg\" alt=\"material\" class=\"aplusicon\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\u003cstrong\u003eCeramic Cut Rate\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eCeramic abrasive is built for aggressive stock removal on stainless steel and high-tensile alloys, so you spend less time leaning on the grinder to get material moving.\u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"card\"\u003e\n        \u003cdiv class=\"card-inside\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/diameter.svg\" alt=\"diameter\" class=\"aplusicon\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\u003cstrong\u003e4 Inch Fiber Disc\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eThe Mirka Ceramic Supreme Fiber Disc 4 inch size is a practical fit for compact grinding and cutting work where control matters as much as removal speed.\u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"card\"\u003e\n        \u003cdiv class=\"card-inside\"\u003e\n          \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/grit-range.svg\" alt=\"grit-range\" class=\"aplusicon\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\u003cstrong\u003eCoarse 36 Grit\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eP36 grit is the right call when the job is heavy grinding, weld cleanup, or fast surface prep instead of finish work.\u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-overview\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eOverview\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\" data-product-summary\u003e\n    \u003cp\u003eThe Mirka Ceramic Supreme Fiber Disc 4 inch is a ceramic fiber disc built for cutting and grinding metal. This is a fiber disc designed for fast material removal on stainless steel and high-tensile alloys. Model Number 63-438-036. If you need a coarse abrasive for hard metals where ordinary discs can slow down, this one is aimed at that kind of work.\u003c\/p\u003e\n    \u003cp\u003eWhat matters here is the combination of ceramic abrasive, a 4 inch disc size, and P36 grit. In plain terms, that means this disc is set up for aggressive work, not fine finishing. It is meant to bite into tough material, help remove stock quickly, and keep productivity up when you are cleaning welds, grinding edges, or prepping steel surfaces for the next step.\u003c\/p\u003e\n    \u003cp\u003eMirka positions this disc for stainless steel and high-tensile alloys, which tells you exactly where it belongs. Those materials can be demanding on abrasives, so product choice matters. A ceramic fiber disc is the kind of abrasive serious metalworkers reach for when they need efficient grinding performance on harder metals instead of a disc that gives up early.\u003c\/p\u003e\n    \u003cp\u003eThe 4 inch size makes sense when you want a smaller grinding disc that is easier to control in tighter working areas or on smaller parts. That can be useful for fabrication work, repair work, and detailed grinding where a larger disc would feel less precise. The center hole format also makes it part of the standard fiber disc style used with the proper backing pad setup.\u003c\/p\u003e\n    \u003cp\u003eThis Mirka grinding disc is also listed as suitable for steel and lacquers. That gives it some added versatility for surface prep tasks where material type can change from one step of the job to the next. Just keep the grit in mind: P36 is a coarse option, so it is best used when speed and removal matter more than surface refinement.\u003c\/p\u003e\n    \u003cp\u003eWho should buy it? Metal fabricators, welders, maintenance techs, and serious DIY users who already know they need a coarse 4 inch fiber disc for grinding and cutting tasks. If your work involves stainless, tougher alloys, or fast cleanup on steel, this is the right kind of abrasive. If you are chasing a finer finish, you will want a finer grit than this one.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-benefits\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eBuilt for Fast Metal Removal\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"row\"\u003e\n      \u003cdiv class=\"img\"\u003e\n        \u003cimg src=\"https:\/\/cdn.anglera.com\/assets\/74d6ed76-fe0d-4d23-a9db-1f8749ca9ef2\/20260623971_1.jpg\" alt=\"Mirka Ceramic Supreme Fiber Disc 4 inch coarse grinding disc for stainless steel and high-tensile alloy metalworking\" class=\"tnblock-img\"\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"copy\"\u003e\n        \u003cp\u003eThis abrasive is meant for the rough part of the job, where removal speed and toughness matter more than finish quality. For weld cleanup, edge grinding, and stock removal on harder metals, coarse ceramic grain is the right setup.\u003c\/p\u003e\n        \u003cul\u003e\n          \u003cli\u003eCeramic fiber disc designed for cutting and grinding stainless steel and high-tensile alloys\u003c\/li\u003e\n          \u003cli\u003eP36 grit gives a coarse cut suited to aggressive grinding and surface prep\u003c\/li\u003e\n          \u003cli\u003e4 inch diameter helps with control on smaller parts and tighter work areas\u003c\/li\u003e\n        \u003c\/ul\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-whats-included\" class=\"acc\" open\u003e\n  \u003csummary\u003e\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"tnincluded-wrapper\"\u003e\n      \u003cul\u003e\n        \u003cli\u003e(25) Mirka Ceramic Supreme Fiber Disc 4 inch P36 discs\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-key-specifications\" class=\"acc\" open\u003e\n  \u003csummary\u003e\u003ch2\u003eKey Specifications\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003ctable class=\"aplusspecs\"\u003e\n      \u003ctr\u003e\n        \u003cth\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/model-number.svg\" alt=\"model-number\" class=\"aplusicon\"\u003e Part Number\u003c\/th\u003e\n        \u003ctd\u003e63-438-036\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/diameter.svg\" alt=\"diameter\" class=\"aplusicon\"\u003e Disc Diameter\u003c\/th\u003e\n        \u003ctd\u003e4 in.\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/grit-range.svg\" alt=\"grit-range\" class=\"aplusicon\"\u003e Grit\u003c\/th\u003e\n        \u003ctd\u003eP36\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/material.svg\" alt=\"material\" class=\"aplusicon\"\u003e Abrasive Type\u003c\/th\u003e\n        \u003ctd\u003eCeramic fiber disc\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/material.svg\" alt=\"material\" class=\"aplusicon\"\u003e Suitable Materials\u003c\/th\u003e\n        \u003ctd\u003eSteel, stainless steel, lacquers, high-tensile alloys\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/accessories-included.svg\" alt=\"accessories-included\" class=\"aplusicon\"\u003e Pack Quantity\u003c\/th\u003e\n        \u003ctd\u003e25 pieces\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-built-for\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eBuilt For\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"tags\"\u003e\n      \u003cspan class=\"tag\"\u003eMetalworking\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eWeld Cleanup\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eStainless Steel Grinding\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eSurface Prep\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eFabrication\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eGeneral Maintenance\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-tool-nut-take\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eTool Nut's Take\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"eyebrow\"\u003eTool Nut's Take\u003c\/div\u003e\n    \u003ch3\u003eMirka Ceramic Supreme Fiber Disc 4 inch means business\u003c\/h3\u003e\n    \u003cp\u003eThis is the kind of disc you buy when the job is removing metal fast, especially on tougher materials that can punish a weaker abrasive.\u003c\/p\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWho it's for:\u003c\/strong\u003e Welders, fabricators, maintenance crews, and serious DIY users doing real grinding work on steel, stainless, and hard alloys.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhy it stands out:\u003c\/strong\u003e Ceramic grain, coarse P36 grit, and a practical 4 inch format make it a solid choice for aggressive cutting and grinding.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWorth knowing:\u003c\/strong\u003e This is not a finishing disc. It is a 25-pack of coarse fiber discs, so plan on a finer follow-up step if surface finish matters.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-faqs\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eCommon Questions\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhat material is this disc designed to handle?\u003c\/strong\u003e It is designed for cutting and grinding stainless steel and high-tensile alloys, and it is also listed as suitable for steel and lacquers.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eIs this a finishing disc?\u003c\/strong\u003e No. The P36 grit is a coarse grit intended for aggressive material removal and surface prep rather than fine finishing.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhat size is the disc?\u003c\/strong\u003e The disc diameter is 4 inches.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eHow many discs come in a pack?\u003c\/strong\u003e This part number is sold as a 25-piece pack.\u003c\/li\u003e\n    \u003c\/ul\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e","brand":"Mirka","offers":[{"title":"Default Title","offer_id":53385933160742,"sku":"63-438-036-MIRKA","price":84.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/20260623971_1.jpg?v=1782171952","url":"https:\/\/www.toolnut.com\/products\/mirka-ceramic-supreme-4-in-p36-fiber-disc-for-cutting-and-grinding-stainless-steel-25-pack-63-438-036","provider":"Tool Nut","version":"1.0","type":"link"}