{"product_id":"mirka-arp300-b-12v-3-in-cordless-rotary-polisher-5-0ah-kit-with-charger-and-2-batteries-mus-arp300","title":"Mirka ARP300-B 12V 3-in. Cordless Rotary Polisher 5.0Ah Kit with Charger and 2 Batteries (MUS-ARP300)","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\/size.svg\" alt=\"size\" class=\"aplusicon\"\u003e\n          \u003c\/div\u003e\n          \u003cdiv\u003e\u003cstrong\u003eBuilt for Small Areas\u003c\/strong\u003e\u003c\/div\u003e\n          \u003cdiv class=\"feature-card\"\u003eThe Mirka ARP300-B 3 inch rotary battery polisher is sized for spot repairs and tight work where a full-size polisher is overkill. That means better control around edges, pillars, trim, and other confined sections.\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\/motor-type.svg\" alt=\"motor-type\" class=\"aplusicon\"\u003e\n          \u003c\/div\u003e\n          \u003cdiv\u003e\u003cstrong\u003eBrushless Efficiency\u003c\/strong\u003e\u003c\/div\u003e\n          \u003cdiv class=\"feature-card\"\u003eThe brushless motor cuts maintenance and supports cordless convenience without dragging a cord across finished surfaces. It is a smart setup for detail work where mobility matters as much as finish quality.\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\/variable-speed.svg\" alt=\"variable-speed\" class=\"aplusicon\"\u003e\n          \u003c\/div\u003e\n          \u003cdiv\u003e\u003cstrong\u003eControlled Trigger Response\u003c\/strong\u003e\u003c\/div\u003e\n          \u003cdiv class=\"feature-card\"\u003eVariable speed on the trigger gives you better control at startup and through the polishing pass. That helps reduce splashing and lowers the chance of overheating or burning the surface.\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 \u003cstrong\u003eMirka ARP300-B 3 inch Rotary Battery Polisher\u003c\/strong\u003e, model \u003cstrong\u003eMUS-ARP300\u003c\/strong\u003e, is a cordless polishing kit built for pros who need control in tight working areas. This is a \u003cstrong\u003erotary polisher designed for polishing small areas\u003c\/strong\u003e. If you do spot repair, finish correction on smaller panels, or detail polishing where a larger machine feels clumsy, this tool makes a lot of sense.\u003c\/p\u003e\n      \u003cp\u003eWhat separates this polisher from bigger paint correction tools is scale and control. The 3 inch backing pad keeps the working area focused, which is what you want when you are dealing with smaller sections instead of broad hoods or doors. Add in the variable speed trigger and you can ease into the pad rotation instead of hitting the panel too aggressively. In practical terms, that helps keep compound where you want it and reduces the risk of splashing or burning the surface.\u003c\/p\u003e\n      \u003cp\u003eThe cordless setup is a real advantage here. When you are polishing around a vehicle, working in a mobile detailing setup, or moving from panel to panel in a body shop, a cord gets old fast. The Mirka ARP300-B 3 inch Rotary Battery Polisher gives you the freedom to move cleanly without managing cable drag across paint or trim. For smaller correction jobs, that usually means faster setup and less hassle.\u003c\/p\u003e\n      \u003cp\u003eMirka also built this tool around a brushless motor, which is a big plus for a professional-use polisher. Brushless design generally means lower maintenance and a more efficient package for cordless operation. That fits the whole point of this machine: a light, nimble, ergonomic rotary polisher that is easy to grab for detail work without feeling like a compromise.\u003c\/p\u003e\n      \u003cp\u003eThis kit version, MUS-ARP300, includes two 5Ah 12V Li-ion batteries and a charger. That matters because this is not just a bare tool for someone already deep into the platform. It is a ready-to-work package for users who want the complete cordless setup from the start. Having two batteries in the kit also makes more sense on the job because one can be on the charger while the other is in use.\u003c\/p\u003e\n      \u003cp\u003eThe overall design is aimed squarely at finish-focused users who need precision more than brute coverage. Auto body techs, detailers, refinish pros, and serious enthusiasts are the obvious fit. If your work regularly involves compact polishing zones, intricate contours, or smaller correction tasks where full-size polishers are awkward, this Mirka rotary polisher is the right kind of specialty tool.\u003c\/p\u003e\n      \u003cp\u003eBottom line: this is not the machine you buy to cover the biggest surface area in the shortest time. It is the one you buy when access, control, and surface safety matter more. For small-area polishing, that is exactly the point.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails id=\"product-benefits\" class=\"acc\"\u003e\n    \u003csummary\u003e\u003ch2\u003eStay Precise in Tight Working Areas\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\/20260623370_1.jpg\" alt=\"Mirka ARP300-B 3 inch rotary battery polisher with compact backing pad for small-area polishing and detail correction work in automotive refinishing\" class=\"tnblock-img\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"copy\"\u003e\n          \u003cp\u003eThe compact format is the whole reason to own this tool. It is easier to position on tight spots, easier to keep flat, and easier to control when the work area does not give you much room.\u003c\/p\u003e\n          \u003cul\u003e\n            \u003cli\u003e3 inch backing pad keeps the polishing area focused\u003c\/li\u003e\n            \u003cli\u003eWell suited for spot repair, trim-adjacent work, and smaller finish correction jobs\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\u003eWork Cordless Without Giving Up Control\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\/20260623370_2.jpg\" alt=\"Mirka ARP300-B 3 inch rotary battery polisher showing top controls for cordless polishing and variable speed adjustment during finish work\" class=\"tnblock-img\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"copy\"\u003e\n          \u003cp\u003eFor polishing work, a smooth start matters. The variable speed trigger lets you ease into the pass so you can manage pad contact and compound spread instead of fighting the tool.\u003c\/p\u003e\n          \u003cul\u003e\n            \u003cli\u003eVariable speed trigger helps reduce splashing at startup\u003c\/li\u003e\n            \u003cli\u003eDesigned to help lower the risk of overheating or burning the surface\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(1) Mirka ARP300-B 3 inch Rotary Battery Polisher\u003c\/li\u003e\n          \u003cli\u003e(2) 5Ah 12V Li-ion Batteries\u003c\/li\u003e\n          \u003cli\u003e(1) Charger\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\u003eTool Type\u003c\/th\u003e\n          \u003ctd\u003eRotary Polisher\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBacking Pad Size\u003c\/th\u003e\n          \u003ctd\u003e3 in\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eMotor Type\u003c\/th\u003e\n          \u003ctd\u003eBrushless\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003ePower Source\u003c\/th\u003e\n          \u003ctd\u003e12V Li-ion Battery\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBattery Capacity\u003c\/th\u003e\n          \u003ctd\u003e5Ah each\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBattery Quantity\u003c\/th\u003e\n          \u003ctd\u003e2\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eSpeed Control\u003c\/th\u003e\n          \u003ctd\u003eVariable speed trigger\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eConfiguration\u003c\/th\u003e\n          \u003ctd\u003eKit with batteries and charger\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\/voltage.svg\" alt=\"voltage\" class=\"icon-sm\"\u003e\n          \u003cdiv\u003e\n            \u003cstrong\u003eBattery Platform\u003c\/strong\u003e\n            \u003cdiv class=\"compat-detail\"\u003eRuns on the included 12V Li-ion battery system supplied with this MUS-ARP300 kit.\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\/charger-included.svg\" alt=\"charger-included\" class=\"icon-sm\"\u003e\n          \u003cdiv\u003e\n            \u003cstrong\u003eCharging Setup\u003c\/strong\u003e\n            \u003cdiv class=\"compat-detail\"\u003eThis version includes a charger, so you are set up for battery charging right out of the box.\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\"\u003eDetailing\u003c\/span\u003e\n        \u003cspan class=\"tag\"\u003eAuto Body Repair\u003c\/span\u003e\n        \u003cspan class=\"tag\"\u003eRefinishing\u003c\/span\u003e\n        \u003cspan class=\"tag\"\u003eSpot Repair\u003c\/span\u003e\n        \u003cspan class=\"tag\"\u003eSmall-Area Polishing\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\"\u003eWith a small rotary polisher like this, start the pass at low trigger input until the pad is fully planted and the compound is spread. That is the easiest way to keep sling down and protect the finish on spot repairs and tight panel sections.\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 ARP300-B 3 inch Rotary Battery Polisher Gets the Small Stuff Right\u003c\/h3\u003e\n      \u003cp\u003eThe Mirka ARP300-B 3 inch Rotary Battery Polisher is the kind of specialty cordless tool that earns its keep fast if you do detail polishing, spot correction, or body shop finish work.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWho it's for:\u003c\/strong\u003e Detailers, refinish techs, and body shop pros who need a compact rotary polisher for tight areas and smaller correction zones.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWhy it stands out:\u003c\/strong\u003e The 3 inch pad, brushless motor, cordless layout, and variable speed trigger all work together for controlled polishing where a bigger machine feels awkward.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWorth knowing:\u003c\/strong\u003e This is a precision tool for smaller areas, not a broad-panel production polisher. If that is your use case, that is exactly why it is a good buy.\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\u003eIs this a cordless polisher?\u003c\/strong\u003e Yes. It is a cordless rotary polisher powered by 12V Li-ion batteries.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWhat size backing pad does it use?\u003c\/strong\u003e The Mirka ARP300-B uses a 3 inch backing pad.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eDoes this kit include batteries and a charger?\u003c\/strong\u003e Yes. MUS-ARP300 includes two 5Ah 12V Li-ion batteries and a charger.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWhat kind of work is it meant for?\u003c\/strong\u003e It is designed for polishing small areas where control and access matter more than covering large surfaces quickly.\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":53385920971046,"sku":"MUS-ARP300","price":793.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/20260623370_1.jpg?v=1782171908","url":"https:\/\/www.toolnut.com\/products\/mirka-arp300-b-12v-3-in-cordless-rotary-polisher-5-0ah-kit-with-charger-and-2-batteries-mus-arp300","provider":"Tool Nut","version":"1.0","type":"link"}