{"product_id":"mirka-galaxy-5-in-40-grit-hook-and-loop-sanding-discs-50-pack-multifit-grip-fy-5mf-040","title":"Mirka Galaxy 5-in. 40 Grit Hook and Loop Sanding Discs, 50-Pack Multifit Grip (FY-5MF-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\"\u003eBuilt for fast stock removal when you need to strip material, flatten filler, or knock down heavy surface defects before moving to finer steps.\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\u003eSelf-Sharpening Ceramic Grain\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eThe ceramic alumina abrasive keeps exposing fresh cutting edges as it wears, so the disc stays productive longer instead of going dull early.\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\u003eMultifit Sanding Disc Pattern\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eThe universal hole layout makes these Mirka Galaxy 5 in Multifit Grip sanding discs easier to pair with different sanders without lining up a dedicated hole pattern.\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 Galaxy 5 in Multifit Grip Sanding Disc, Model FY-5MF-040, is a 5-inch hook and loop abrasive disc made for power sanding. This is a sanding disc designed for fast material removal on wood, metal, epoxy resin, and other soft and hard materials. In this 40 grit version, it is aimed at the early stage of surface prep where you need an extra coarse cut, not a finish-ready scratch pattern.\u003c\/p\u003e\n    \u003cp\u003eWhat matters here is the abrasive itself. Mirka uses ceramic alumina grain with a self-sharpening design, which means the grain keeps breaking in a way that exposes fresh cutting edges during use. On the job, that translates to a disc that keeps cutting instead of glazing over too quickly. If you are sanding heavy coatings, leveling uneven surfaces, or removing material from tough workpieces, that kind of consistency saves time and reduces wasted discs.\u003c\/p\u003e\n    \u003cp\u003eThe Galaxy line is also built around a non-clogging, anti-adhesive approach. That matters when you are sanding materials that tend to load up paper fast. Less clogging means better cut quality, less heat, and fewer disc changes. For anyone doing repeated surface prep, that is the difference between steady production and constantly stopping to swap abrasives.\u003c\/p\u003e\n    \u003cp\u003eMirka's Multifit hole pattern is one of the most practical parts of this product. Instead of forcing you into one exact hole layout, the universal pattern is meant to work without careful alignment on compatible 5-inch sanding setups. That makes disc changes quicker and helps with dust extraction across a wider range of tools. If you run more than one sander in the shop, or just do not want to fuss with lining up holes every time, this is a real advantage.\u003c\/p\u003e\n    \u003cp\u003ePhysically, these are 5-inch round hook and loop discs with a listed thickness of about 0.15 inches and a pack count of 50. The hook and loop backing gives you quick changes between grits, which matters when you are working through a sanding sequence. The 40 grit rating puts this disc firmly in the aggressive prep category, so it is best used where speed and removal rate matter more than surface finish.\u003c\/p\u003e\n    \u003cp\u003eThe Mirka Galaxy 5 in Multifit Grip Sanding Disc is a strong fit for body shops, woodworkers, finish prep crews, metal fabricators, and serious DIY users who want a premium abrasive for coarse sanding. If your goal is rapid removal with better disc life and less clogging, this is the right kind of abrasive. If you are already at the refining or finishing stage, you will want to step up to a finer grit in the same system.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/details\u003e\n\n\u003cdetails id=\"product-benefits-1\" 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\/20260623821_1.jpg\" alt=\"Mirka Galaxy 5 in Multifit Grip Sanding Disc 40 grit abrasive disc for power sanding wood metal and epoxy resin during coarse surface preparation\" class=\"tnblock-img\"\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"copy\"\u003e\n        \u003cp\u003eThis 40 grit disc is for the part of the job where you need to move material, not baby the surface. It is a smart choice for stripping, leveling, and knocking down rough stock before finer sanding steps.\u003c\/p\u003e\n        \u003cul\u003e\n          \u003cli\u003eExtra coarse 40 grit for aggressive removal\u003c\/li\u003e\n          \u003cli\u003e5-inch disc format fits common random orbital sanding 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-benefits-2\" class=\"acc flip\"\u003e\n  \u003csummary\u003e\u003ch2\u003eStays Cutting Longer\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\/20260623821_2.jpg\" alt=\"Mirka Galaxy 5 in Multifit Grip Sanding Disc 50 pack stack showing ceramic alumina sanding discs for long lasting stock removal in workshop use\" class=\"tnblock-img\"\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"copy\"\u003e\n        \u003cp\u003eCeramic alumina grain and Mirka's self-sharpening design help the abrasive stay productive through more of the disc's life. That means less time fighting dull paper and more time actually sanding.\u003c\/p\u003e\n        \u003cul\u003e\n          \u003cli\u003eCeramic alumina abrasive for sustained cut rate\u003c\/li\u003e\n          \u003cli\u003eNon-clogging design helps reduce loading during sanding\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-3\" class=\"acc\"\u003e\n  \u003csummary\u003e\u003ch2\u003eEasier Fit Across Different Sanders\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\/20260623821_4.jpg\" alt=\"Mirka Galaxy 5 in Multifit Grip Sanding Disc front and back showing universal hole pattern and hook and loop backing for 5 inch sander use\" class=\"tnblock-img\"\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"copy\"\u003e\n        \u003cp\u003eThe Multifit pattern is made to reduce alignment hassle when changing discs. Paired with hook and loop backing, it gives you faster swaps and practical dust extraction compatibility on the right 5-inch setup.\u003c\/p\u003e\n        \u003cul\u003e\n          \u003cli\u003eUniversal Multifit hole layout\u003c\/li\u003e\n          \u003cli\u003eHook and loop backing for quick disc changes\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(50) Mirka Galaxy 5 in Multifit Grip Sanding Discs, 40 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\u003e5 in\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\u003eGrit Type\u003c\/th\u003e\n        \u003ctd\u003eExtra Coarse\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eAbrasive Material\u003c\/th\u003e\n        \u003ctd\u003eCeramic Alumina\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBacking Type\u003c\/th\u003e\n        \u003ctd\u003eHook and Loop Grip\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eHole Pattern\u003c\/th\u003e\n        \u003ctd\u003eMultifit Universal Pattern\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eConstruction Type\u003c\/th\u003e\n        \u003ctd\u003eCoated\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003ePack Quantity\u003c\/th\u003e\n        \u003ctd\u003e50 Discs\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\u003eSander Size\u003c\/strong\u003e\n          \u003cdiv class=\"compat-detail\"\u003eDesigned in a 5-inch disc format for compatible 5-inch power 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\"\u003eMultifit universal hole configuration is made to work without precise alignment to a dedicated hole layout.\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 Method\u003c\/strong\u003e\n          \u003cdiv class=\"compat-detail\"\u003eHook and loop backing allows fast changes on compatible grip 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\"\u003eWoodworking\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eMetalworking\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eEpoxy Resin Sanding\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eSurface Preparation\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003ePaint and Coating Removal\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eBody Shop Work\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eRemodeling\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eDIY \/ Hobbyist\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 Mirka Galaxy disc for the first cut only, then step through finer grits instead of trying to force one disc to do the whole job. That keeps removal fast and makes it easier to clean up the scratch pattern in the next pass.\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 Galaxy 5 in Multifit Grip Sanding Disc Gets the Heavy Work Started Right\u003c\/h3\u003e\n    \u003cp\u003eIf you want a premium sanding disc that cuts hard, resists loading, and saves some aggravation on hole alignment, this one earns its keep.\u003c\/p\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWho it's for:\u003c\/strong\u003e Anyone doing aggressive surface prep on wood, metal, or epoxy resin with a compatible 5-inch hook and loop sander.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhy it stands out:\u003c\/strong\u003e The ceramic grain stays sharp, the Multifit pattern is practical, and the non-clogging design makes a real difference during coarse sanding.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWorth knowing:\u003c\/strong\u003e This is 40 grit, so it is meant for removal and prep work, not finish sanding. Plan on following with finer discs 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 kind of sanding is 40 grit best for?\u003c\/strong\u003e 40 grit is extra coarse and best for aggressive material removal, heavy surface prep, and early sanding stages.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhat is the disc material?\u003c\/strong\u003e The abrasive material is ceramic alumina.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eDoes this disc use hook and loop backing?\u003c\/strong\u003e Yes. It uses a hook and loop grip backing for quick attachment and removal.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhat materials can this be used on?\u003c\/strong\u003e Source data lists it as suitable for sanding wood, metal, epoxy resin, and both soft and hard 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":53385929916710,"sku":"FY-5MF-040-MIRKA","price":36.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/20260623821_1.jpg?v=1782171940","url":"https:\/\/www.toolnut.com\/products\/mirka-galaxy-5-in-40-grit-hook-and-loop-sanding-discs-50-pack-multifit-grip-fy-5mf-040","provider":"Tool Nut","version":"1.0","type":"link"}