{"product_id":"mirka-galaxy-6-in-40-grit-hook-and-loop-sanding-discs-50-pack-for-power-sanders-fy-622-040","title":"Mirka Galaxy 6-in. 40 Grit Hook and Loop Sanding Discs, 50-Pack for Power Sanders (FY-622-040)","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\u003eFast 40 Grit Cut\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eThis coarse sanding disc is built for aggressive stock removal when you need to level filler, strip finishes, or knock down material quickly before moving to finer grits.\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 abrasive breaks down in a useful way so fresh cutting edges keep working longer. That means a faster cut and fewer disc changes during heavy sanding.\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\u003eClean Hook and Loop Setup\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eThe Mirka Galaxy 6 in Grip sanding disc uses a hook and loop backing for quick swaps on compatible sanders, with a dust-repellent coating that helps resist loading on tough surfaces.\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\" open\u003e\n  \u003csummary\u003e\u003ch2\u003eOverview\u003c\/h2\u003e\u003c\/summary\u003e\n  \u003cdiv class=\"acc-body\" data-product-summary\u003e\n    \u003cp\u003eThe \u003cstrong\u003eMirka Galaxy 6 in Grip sanding disc\u003c\/strong\u003e, model \u003cstrong\u003eFY-622-040\u003c\/strong\u003e, is a 6 inch hook and loop abrasive disc in \u003cstrong\u003e40 grit\u003c\/strong\u003e sold in a 50-pack. This is a \u003cstrong\u003esanding disc designed for aggressive material removal and surface prep\u003c\/strong\u003e on a compatible disc sander. It is a strong fit for body shops, marine work, woodworking, and general finishing prep where you need a coarse abrasive that cuts fast without loading up too quickly.\u003c\/p\u003e\n    \u003cp\u003eWhat matters here is the abrasive itself. Mirka Galaxy uses self-sharpening ceramic grain, which means the cutting edges renew as the disc wears. On the job, that translates to a disc that keeps biting instead of glazing over early. For a coarse grit like 40, that is exactly what you want when leveling epoxy resin, shaping filler, stripping coatings, or taking down rough wood and metal surfaces before the next sanding step.\u003c\/p\u003e\n    \u003cp\u003eMirka positions Galaxy as a multi-purpose abrasive, and the material range backs that up. Source data lists epoxy resin, gelcoat, lacquer, stainless steel, and wood as compatible materials. That broad range makes this a practical choice if your work moves between substrates and you do not want to keep swapping to a different disc line every time the material changes. In a shop that handles collision repair, marine refinishing, or mixed fabrication work, that kind of versatility saves time.\u003c\/p\u003e\n    \u003cp\u003eThe dust-repellent, clog-resistant coating is another feature that actually earns its keep. Coarse discs can load fast when you are sanding finishes, resins, or softer materials. A coating that helps shed dust and debris keeps the abrasive face cutting more consistently and helps maintain better extraction through the sander. That means less wasted motion, fewer burnt-looking scratch patterns from a loaded disc, and longer usable life from each piece.\u003c\/p\u003e\n    \u003cp\u003eThe hook and loop backing keeps setup simple. You can swap discs quickly on a compatible 6 inch disc sander without fighting adhesive-backed consumables, which is a real advantage when you are stepping through grits or replacing worn discs throughout the day. For production sanding and repair work, quick disc changes are not a small thing. They keep the tool moving and the work flowing.\u003c\/p\u003e\n    \u003cp\u003eBecause this is a 40 grit disc, it is not meant for final finish work. It is the early-stage abrasive in the process, used when the priority is removal rate and leveling rather than cosmetic finish quality. That makes it especially useful for stripping, heavy prep, flattening, and knocking down high spots before you refine the surface with progressively finer abrasives.\u003c\/p\u003e\n    \u003cp\u003eIf you are a contractor, refinisher, body tech, boat builder, cabinet shop worker, or serious DIY user who burns through coarse discs on real prep work, this Mirka abrasive makes sense. If your jobs are mostly final sanding between coats or light finish correction, you will want a finer grit. But if the work starts rough and needs to get flat fast, this is the right end of the grit range to start with.\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 to Keep Cutting During Heavy 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\/20260623497_4.jpg\" alt=\"Mirka Galaxy 6 in Grip sanding disc front and back view showing hook and loop disc design for heavy sanding on wood, metal, epoxy resin, and repair work\" class=\"tnblock-img\"\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"copy\"\u003e\n        \u003cp\u003eThis Mirka sanding disc is meant for the rough part of the job, where cut speed matters more than polish. The ceramic grain and clog-resistant coating help it stay productive when cheaper discs would already be slowing down.\u003c\/p\u003e\n        \u003cul\u003e\n          \u003cli\u003e40 grit for aggressive stock removal and surface leveling\u003c\/li\u003e\n          \u003cli\u003eHook and loop backing for fast changes on compatible disc sanders\u003c\/li\u003e\n          \u003cli\u003eDesigned to work across wood, stainless steel, lacquer, gelcoat, and epoxy resin\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 6 in Grip sanding discs\u003c\/li\u003e\n        \u003cli\u003e40 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\u003e6 in. (150 mm)\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\u003eBacking Type\u003c\/th\u003e\n        \u003ctd\u003eHook and Loop\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\u003ePack Quantity\u003c\/th\u003e\n        \u003ctd\u003e50 Discs\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eCompatible Tool Type\u003c\/th\u003e\n        \u003ctd\u003eDisc Sander\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eCompatible Materials\u003c\/th\u003e\n        \u003ctd\u003eEpoxy resin, gelcoat, lacquer, stainless steel, wood\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\/sander.svg\" alt=\"sander\" class=\"aplusicon\"\u003e\n        \u003cdiv\u003e\n          \u003cstrong\u003eTool Compatibility\u003c\/strong\u003e\n          \u003cdiv class=\"compat-detail\"\u003eDesigned for compatible 6 inch disc sanders.\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=\"aplusicon\"\u003e\n        \u003cdiv\u003e\n          \u003cstrong\u003eDisc Attachment\u003c\/strong\u003e\n          \u003cdiv class=\"compat-detail\"\u003eHook and loop backing for quick disc changes on matching hook and loop 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\"\u003eCollision Repair\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eMarine Production\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eWoodworking\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eSurface Preparation\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eEpoxy Resin Sanding\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eGelcoat Sanding\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eMetalworking\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eHeavy Stock Removal\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 Galaxy 6 in Grip Sanding Disc Means Business\u003c\/h3\u003e\n    \u003cp\u003eIf your first sanding step is about removing material fast and keeping the disc working, this is the kind of abrasive worth buying.\u003c\/p\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWho it's for:\u003c\/strong\u003e Body techs, marine shops, woodworkers, and serious DIY users doing real prep work on rough surfaces.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhy it stands out:\u003c\/strong\u003e The ceramic grain keeps cutting, the coating helps resist loading, and the 40 grit rating makes it a strong choice for aggressive removal instead of light finish sanding.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWorth knowing:\u003c\/strong\u003e The Mirka Galaxy 6 in Grip sanding disc is a coarse disc, so plan to follow it with finer grits if the job needs a refined 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 type of sander does this disc fit?\u003c\/strong\u003e Source data lists compatibility with disc sanders, and the backing type is hook and loop.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhat materials can this abrasive be used on?\u003c\/strong\u003e It is listed for epoxy resin, gelcoat, lacquer, stainless steel, and wood.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eIs 40 grit for finish sanding?\u003c\/strong\u003e No. 40 grit is an extra coarse abrasive intended for aggressive removal, leveling, and early-stage prep.\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":53385924968742,"sku":"FY-622-040-MIRKA","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/20260623497_1.jpg?v=1782171924","url":"https:\/\/www.toolnut.com\/products\/mirka-galaxy-6-in-40-grit-hook-and-loop-sanding-discs-50-pack-for-power-sanders-fy-622-040","provider":"Tool Nut","version":"1.0","type":"link"}