{"product_id":"mirka-iridium-8-in-40-grit-grip-sanding-disc-133-holes-24-8mh-040","title":"Mirka Iridium 8-in. 40 Grit Grip Sanding Disc, 133 Holes (24-8MH-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 40 Grit Cut\u003c\/strong\u003e\u003c\/div\u003e\n          \u003cdiv class=\"feature-card\"\u003eThis coarse abrasive is built for fast stock removal, paint stripping, and knocking down filler. When you need to remove material instead of just refine a surface, 40 grit gets to work quickly.\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\u003e8 Inch Disc Coverage\u003c\/strong\u003e\u003c\/div\u003e\n          \u003cdiv class=\"feature-card\"\u003eThe 8 inch format covers more surface area per pass, which helps on larger panels and broad sanding jobs. That means fewer passes and better pace when you're leveling, stripping, or shaping.\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\/vacuum-compatibility.svg\" alt=\"vacuum-compatibility\" class=\"aplusicon\"\u003e\n          \u003c\/div\u003e\n          \u003cdiv\u003e\u003cstrong\u003e133 Hole Grip Pattern\u003c\/strong\u003e\u003c\/div\u003e\n          \u003cdiv class=\"feature-card\"\u003eThe Mirka IRIDIUM 8\" Grip, 133 Holes disc is designed to pair with matching multi-hole sanding pads for broad dust extraction coverage. Better airflow through the disc helps keep the abrasive working cleaner on long sanding sessions.\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\u003e\u003cstrong\u003eMirka IRIDIUM 8\" Grip, 133 Holes\u003c\/strong\u003e is an 8 inch grip-backed abrasive sanding disc in a 40 grit configuration for fast material removal. This is a sanding disc designed for coarse sanding, stripping, shaping, and surface preparation across wood, metal, fillers, coatings, and composites. Model Number: \u003cstrong\u003e24-8MH-040\u003c\/strong\u003e.\u003c\/p\u003e\n      \u003cp\u003eThe big story here is the cut rate. A 40 grit disc is not for light finish sanding. It is for the early part of the job when you need to remove old paint, break through coatings, flatten body filler, or level rough material before stepping into finer grits. If you're working on paint removal, aggressive prep, or heavy defect correction, this grit makes sense because it removes stock fast and gives you a strong starting point for the next sanding stages.\u003c\/p\u003e\n      \u003cp\u003eThe 8 inch size matters on larger work. Bigger discs cover more area with each pass, which helps when you're sanding broad panels, tabletops, composite surfaces, or other wide sections where a smaller disc would slow you down. For shops and contractors who do repetitive prep work, that larger footprint can save real time over the course of a day.\u003c\/p\u003e\n      \u003cp\u003eThe 133-hole pattern is there for a reason. Multi-hole disc designs are used to support dust extraction across more of the pad surface instead of concentrating airflow in only a few spots. In practical use, that helps reduce buildup on the abrasive and keeps the disc cutting more consistently, especially on sanding tasks that create a lot of fine dust like filler, primer, paint, hardwood, MDF, and composite materials.\u003c\/p\u003e\n      \u003cp\u003eMirka uses a grip backing on this disc, so swaps are quick when the grit sequence changes or when a worn disc needs to come off. That is a real benefit in production sanding and repair work where you move from coarse shaping into intermediate and finish prep in steps. A secure grip-backed disc also helps keep setup simple for users already running compatible hook-and-loop style backing pads.\u003c\/p\u003e\n      \u003cp\u003eMaterial range is broad, which makes this disc useful in mixed-work environments. Based on the available product data, it is suited for steel, mild steel, stainless steel, copper alloys, non-ferrous metal, plaster, filler, fiberglass, synthetic materials, chipboard, solid surface, composites, veneer, plastics, primer, paint, hardwood, softwood, lacquers, MDF, HDF, and polystyrene. That kind of range is exactly why abrasives like this end up in body shops, cabinet shops, fabrication spaces, and general refinishing work.\u003c\/p\u003e\n      \u003cp\u003eIf you're choosing this product, you're likely buying for one of two reasons: you need a coarse disc that removes material fast, or you need an 8 inch multi-hole abrasive that matches a dust-managed sanding setup. Either way, this is a practical choice for pros and serious DIY users who understand grit progression and want to start the job with an aggressive cut before moving to finer discs for refinement.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails id=\"product-benefits\" class=\"acc\"\u003e\n    \u003csummary\u003e\u003ch2\u003eRemove Material Fast on Early Sanding Stages\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\/20260623986_1.jpg\" alt=\"Mirka IRIDIUM 8 inch Grip 133 Holes sanding disc in 40 grit for coarse surface prep, paint removal, and heavy stock removal on wood, filler, and metalworking jobs\" class=\"tnblock-img\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"copy\"\u003e\n          \u003cp\u003eWhen the job starts with rough material, thick coatings, or filler that needs shaping, a coarse disc saves time. This 40 grit sanding disc is meant for the front end of the process where speed matters more than finish quality.\u003c\/p\u003e\n          \u003cul\u003e\n            \u003cli\u003e40 grit is suited to aggressive sanding, stripping, and leveling work\u003c\/li\u003e\n            \u003cli\u003eUseful on paint, primer, body filler, hardwood, softwood, and composites\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-benefits-2\" class=\"acc flip\"\u003e\n    \u003csummary\u003e\u003ch2\u003eCover More Surface With Each Pass\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\/20260623986_3.jpg\" alt=\"Mirka IRIDIUM 8 inch Grip 133 Holes abrasive discs stacked for shop use on broad sanding tasks such as panel prep, composite shaping, and surface leveling\" class=\"tnblock-img\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"copy\"\u003e\n          \u003cp\u003eThe 8 inch diameter is a good fit for larger sanding tasks where smaller discs would mean more overlap and more time. On broad surfaces, that larger footprint helps keep the job moving.\u003c\/p\u003e\n          \u003cul\u003e\n            \u003cli\u003e8 inch disc size is practical for wide sanding areas\u003c\/li\u003e\n            \u003cli\u003eGrip backing supports quick disc changes during grit progression\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-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\u003eBrand\u003c\/th\u003e\n          \u003ctd\u003eMirka\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eProduct Line\u003c\/th\u003e\n          \u003ctd\u003eIRIDIUM\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eDisc Diameter\u003c\/th\u003e\n          \u003ctd\u003e8 in\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBacking Type\u003c\/th\u003e\n          \u003ctd\u003eGrip\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eHole Pattern\u003c\/th\u003e\n          \u003ctd\u003e133 holes\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eGrit\u003c\/th\u003e\n          \u003ctd\u003e40\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eTool Category\u003c\/th\u003e\n          \u003ctd\u003eAbrasive sanding disc\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eSKU\u003c\/th\u003e\n          \u003ctd\u003e24-8MH-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\/diameter.svg\" alt=\"diameter\" class=\"icon-sm\"\u003e\n          \u003cdiv\u003e\n            \u003cstrong\u003ePad Size\u003c\/strong\u003e\n            \u003cdiv class=\"compat-detail\"\u003eDesigned for 8 inch sanding setups.\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\/vacuum-compatibility.svg\" alt=\"vacuum-compatibility\" class=\"icon-sm\"\u003e\n          \u003cdiv\u003e\n            \u003cstrong\u003eHole Pattern\u003c\/strong\u003e\n            \u003cdiv class=\"compat-detail\"\u003eBest matched with a 133-hole backing pad to support full dust extraction performance.\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 compatible hook-and-loop style sanding pads.\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\"\u003eAutomotive\u003c\/span\u003e\n        \u003cspan class=\"tag\"\u003eWoodworking\u003c\/span\u003e\n        \u003cspan class=\"tag\"\u003eMetalworking\u003c\/span\u003e\n        \u003cspan class=\"tag\"\u003ePaint Removal\u003c\/span\u003e\n        \u003cspan class=\"tag\"\u003eBody Filler Shaping\u003c\/span\u003e\n        \u003cspan class=\"tag\"\u003ePrimer Sanding\u003c\/span\u003e\n        \u003cspan class=\"tag\"\u003eComposite Work\u003c\/span\u003e\n        \u003cspan class=\"tag\"\u003eSurface Preparation\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 40 grit disc for the rough shaping and stripping stage, then step through finer grits instead of trying to force one disc to do the whole job. You will get faster removal up front and a cleaner finish once you refine the scratch pattern.\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 IRIDIUM 8\" Grip, 133 Holes Is Built for the Dirty Part of the Job\u003c\/h3\u003e\n      \u003cp\u003eIf you need a disc that starts the work fast instead of babying the surface, this is the one you grab first.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWho it's for:\u003c\/strong\u003e Pros and serious DIY users doing paint removal, filler shaping, composite prep, wood sanding, or metal surface prep on larger areas.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWhy it stands out:\u003c\/strong\u003e You get an aggressive 40 grit cut, an 8 inch format for better coverage, and a 133-hole grip design that fits dust-managed sanding workflows.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWorth knowing:\u003c\/strong\u003e This is a coarse abrasive, so it is not your finish-stage disc. Plan on following it with finer grits if surface quality 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 type of product is this?\u003c\/strong\u003e This is an abrasive sanding disc with grip backing for sanding and surface preparation.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWhat grit is this version?\u003c\/strong\u003e This specific version is 40 grit, which is intended for aggressive stock removal and early-stage sanding.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWhat size backing pad does it fit?\u003c\/strong\u003e It is designed for 8 inch sanding setups.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWhat materials can it be used on?\u003c\/strong\u003e Based on the available product data, it can be used on wood, paint, primer, filler, steel, stainless steel, non-ferrous metals, plastics, composites, veneer, MDF, HDF, and similar surface-prep materials.\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":53385933783334,"sku":"24-8MH-040-MIRKA","price":125.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/20260623986_1.jpg?v=1782171956","url":"https:\/\/www.toolnut.com\/products\/mirka-iridium-8-in-40-grit-grip-sanding-disc-133-holes-24-8mh-040","provider":"Tool Nut","version":"1.0","type":"link"}