{"product_id":"mirka-coarse-cut-8-in-p40-9-hole-grip-sanding-disc-for-coarse-sanding-25-pack-40-632-040","title":"Mirka Coarse Cut 8-in. P40 9-Hole Grip Sanding Disc for Coarse Sanding, 25-Pack (40-632-040)","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\/grit-range.svg\" alt=\"grit-range\" class=\"aplusicon\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\u003cstrong\u003eAggressive P40 Cut\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eThe coarse P40 grit is built for fast stock removal when you need to strip finishes, knock down rough surfaces, or start heavy prep work without wasting time.\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\/material.svg\" alt=\"material\" class=\"aplusicon\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\u003cstrong\u003eWorks Across Materials\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eThis Mirka sanding disc handles wood, metal, plastics, paint removal, fiberglass, and composite materials, so you can keep one abrasive on hand for a wide range of prep jobs.\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\/airflow.svg\" alt=\"airflow\" class=\"aplusicon\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\u003cstrong\u003eReinforced 9-Hole Design\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eThe reinforced backing helps the disc hold up during coarse sanding, and the 9-hole grip pattern supports dust control when used with a matching backing pad.\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 Coarse Cut 8\" 9H Grip, model 40-632-040, is a coarse sanding disc built for heavy surface prep and fast material removal. This is a sanding disc designed for coarse sanding work. If you are stripping paint, leveling rough wood, cleaning up metal, or starting a sanding sequence where speed matters more than finish quality, this is the kind of abrasive that makes sense.\u003c\/p\u003e\n    \u003cp\u003eWhat matters here is the combination of P40 grit, reinforced backing, and dust binding properties. In plain terms, that means the disc is made to cut aggressively while standing up to the kind of pressure that comes with rough sanding. It is intended for the early stages of the job, where you are removing stock, knocking down edges, or clearing away old coatings before moving on to finer grits.\u003c\/p\u003e\n    \u003cp\u003eThe 8-inch size gives you broad surface coverage, which is useful on tabletops, panels, sheet goods, fiberglass parts, and larger metal surfaces. The 9-hole grip pattern is there for use with compatible hook-and-loop sanding pads that support dust extraction. That helps keep the abrasive working cleaner, especially on jobs that produce a lot of dust during sanding and paint removal.\u003c\/p\u003e\n    \u003cp\u003eMirka lists this abrasive for a wide spread of materials, and that is a real advantage on mixed-material work. It is suitable for steel, mild steel, stainless steel, cast iron, non-ferrous metal, hardwood, pine, soft wood, chipboard, MDF, HDF, plastics, synthetic materials, glass fibre, lacquers, and paint stripping. For a shop or contractor who moves between wood prep and surface cleanup on metal or composite parts, that flexibility matters.\u003c\/p\u003e\n    \u003cp\u003eThis Mirka sanding disc is best used where finish quality is not the first priority yet. P40 is for the rough stage. It is the disc you reach for when you need to get through old finish, flatten a problem area, or remove material quickly before stepping down to P80 or finer. If you are expecting a ready-to-finish surface from this grit, you are skipping the process.\u003c\/p\u003e\n    \u003cp\u003eWho should buy it? Body shops, woodworkers, cabinet refinishers, remodeling contractors, and serious DIY users who need an 8-inch coarse sanding disc for real prep work. The Mirka Coarse Cut 8\" 9H Grip is especially useful for anyone already running a compatible 8-inch 9-hole grip sander setup and looking for a dependable abrasive for the first pass.\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 Surface Prep\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\/20260623240_1.jpg\" alt=\"Mirka Coarse Cut 8 inch 9H Grip sanding disc for coarse sanding and paint removal on wood, metal, and composite surfaces in shop prep work\" class=\"tnblock-img\"\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"copy\"\u003e\n        \u003cp\u003eWhen the job starts with rough stock removal, old coating cleanup, or surface leveling, a fine abrasive just slows you down. This disc is made for that first pass where you need the surface under control before refinement starts.\u003c\/p\u003e\n        \u003cul\u003e\n          \u003cli\u003eP40 grit for aggressive material removal\u003c\/li\u003e\n          \u003cli\u003eReinforced backing for heavier sanding pressure\u003c\/li\u003e\n          \u003cli\u003e9-hole grip pattern for use with compatible dust-extraction setups\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\u003e25 Mirka Coarse Cut 8 inch 9-hole grip sanding discs, P40 grit\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\u003eDisc Diameter\u003c\/th\u003e\n        \u003ctd\u003e8 in. (200 mm)\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eGrit\u003c\/th\u003e\n        \u003ctd\u003eP40\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eHole Pattern\u003c\/th\u003e\n        \u003ctd\u003e9-hole\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eAttachment Type\u003c\/th\u003e\n        \u003ctd\u003eGrip\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003ePieces per Pack\u003c\/th\u003e\n        \u003ctd\u003e25\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eRecommended Use\u003c\/th\u003e\n        \u003ctd\u003eCoarse sanding\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eSuitable Materials\u003c\/th\u003e\n        \u003ctd\u003eWood, metal, plastics, fiberglass, paint, lacquers, MDF \/ HDF, chipboard\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eModel Number\u003c\/th\u003e\n        \u003ctd\u003e40-632-040\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-compatibility\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eCompatibility\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"compat-list\"\u003e\n      \u003cdiv class=\"compat-row\"\u003e\n        \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/size.svg\" alt=\"size\" class=\"icon-sm\"\u003e\n        \u003cdiv\u003e\n          \u003cstrong\u003ePad Size\u003c\/strong\u003e\n          \u003cdiv class=\"compat-detail\"\u003eFits compatible 8-inch sanding pads.\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"compat-row\"\u003e\n        \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/tool-free-change.svg\" alt=\"tool-free-change\" class=\"icon-sm\"\u003e\n        \u003cdiv\u003e\n          \u003cstrong\u003eAttachment Style\u003c\/strong\u003e\n          \u003cdiv class=\"compat-detail\"\u003eGrip backing is intended for hook-and-loop style backing pads.\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"compat-row\"\u003e\n        \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/airflow.svg\" alt=\"airflow\" class=\"icon-sm\"\u003e\n        \u003cdiv\u003e\n          \u003cstrong\u003eDust Extraction\u003c\/strong\u003e\n          \u003cdiv class=\"compat-detail\"\u003eThe 9-hole pattern is designed for use with matching 9-hole pad configurations.\u003c\/div\u003e\n        \u003c\/div\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-applications-uses\" 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\"\u003ePaint Stripping\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eWood Surface Prep\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eMetal Sanding\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eFiberglass Work\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eCabinet and Panel Prep\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eBody Shop Sanding\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eRemodeling\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eWoodworking\u003c\/span\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-pro-tips\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003ePro Tip\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\"\u003e\n    \u003cdiv class=\"tip-row\"\u003e\n      \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/specs.svg\" alt=\"specs\" class=\"icon-lg\"\u003e\n      \u003cp class=\"tip-text\"\u003eUse this P40 disc for the first pass only, then step to P80 or finer once the surface is flat and the coating is gone. That keeps you moving fast up front without leaving yourself extra cleanup work at the end.\u003c\/p\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 Coarse Cut 8\" 9H Grip Gets Right to the Dirty Work\u003c\/h3\u003e\n    \u003cp\u003eIf the job starts with rough sanding, stripping, or knocking down material fast, this is the disc you want on the machine before the finer grits come out.\u003c\/p\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWho it's for:\u003c\/strong\u003e Woodworkers, refinishers, body shop techs, and contractors doing heavy prep on wood, metal, fiberglass, or painted surfaces.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhy it stands out:\u003c\/strong\u003e You get aggressive P40 cutting action, reinforced backing for tougher sanding, and a broad material range instead of a disc that only makes sense for one kind of work.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWorth knowing:\u003c\/strong\u003e This is a coarse abrasive, so it is built for removal speed, not finish quality. Plan on following it with finer discs if the surface needs to be ready for paint or finish.\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 kind of sanding is this disc made for?\u003c\/strong\u003e It is made for coarse sanding and fast material removal at the early stage of surface prep.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhat materials can it be used on?\u003c\/strong\u003e Mirka lists it for steel, mild steel, stainless steel, cast iron, non-ferrous metal, pine, hardwood, soft wood, plastics, synthetic materials, glass fibre, lacquers, paint removal, chipboard, and MDF \/ HDF.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhat size machine does it fit?\u003c\/strong\u003e It is an 8-inch disc with a 9-hole grip pattern, so it is intended for compatible 8-inch hook-and-loop sanding setups with a matching hole layout.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eIs this a finishing disc?\u003c\/strong\u003e No. The P40 grit is meant for aggressive removal and rough prep, not final finish sanding.\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":53385918972198,"sku":"40-632-040-MIRKA","price":82.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/20260623240_1.jpg?v=1782171906","url":"https:\/\/www.toolnut.com\/products\/mirka-coarse-cut-8-in-p40-9-hole-grip-sanding-disc-for-coarse-sanding-25-pack-40-632-040","provider":"Tool Nut","version":"1.0","type":"link"}