{"product_id":"mirka-3-in-pneumatic-random-orbital-finishing-sander-non-vac-grip-2-5mm-orbit-mr-3","title":"Mirka 3-in. Pneumatic Random Orbital Finishing Sander, Non-Vac Grip, 2.5mm Orbit (MR-3)","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\/sander.svg\" alt=\"sander\" class=\"aplusicon\"\u003e\n          \u003c\/div\u003e\n          \u003cdiv\u003e\u003cstrong\u003eBuilt for Finish Work\u003c\/strong\u003e\u003c\/div\u003e\n          \u003cdiv class=\"feature-card\"\u003eThe 2.5 mm orbit is set up for fine surface work, not aggressive stock removal. That makes it a good fit for spot repair, defect sanding, and clean finishing where surface quality matters.\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\u003eCompact 3-Inch Pad\u003c\/strong\u003e\u003c\/div\u003e\n          \u003cdiv class=\"feature-card\"\u003eThe smaller backing pad gives you better control in tight areas and on localized repairs. It is easier to keep on target when you are correcting a small section instead of sanding a full panel.\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\/power-source.svg\" alt=\"power-source\" class=\"aplusicon\"\u003e\n          \u003c\/div\u003e\n          \u003cdiv\u003e\u003cstrong\u003ePneumatic Simplicity\u003c\/strong\u003e\u003c\/div\u003e\n          \u003cdiv class=\"feature-card\"\u003eThis air-powered random orbital sander keeps weight down and stays job-ready in shops already set up for compressed air. No battery charging, no cord drag, and less hand fatigue over longer use.\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 MR-3 3\" dia. Finishing Sander Non-Vac Grip 2.5mm Orbit is a pneumatic finishing sander built for spot sanding and fine surface correction. This is a pneumatic random orbital sander designed for spot sanding, defect removal, and general finishing. Model Number MR-3. If you need a compact air sander for small-area work where control matters more than raw removal rate, this is the kind of tool you reach for.\u003c\/p\u003e\n      \u003cp\u003eThe key spec here is the 2.5 mm orbit. That smaller orbit is what helps the Mirka MR-3 leave a cleaner finish for fine sanding steps and repair work. Instead of digging hard like a more aggressive sander, it stays focused on surface quality, which is exactly what you want when you are blending repairs, cleaning up small imperfections, or prepping a surface for the next stage.\u003c\/p\u003e\n      \u003cp\u003eThe 3-inch backing pad also matters more than it sounds on paper. A small pad gives you better access and better control on tight or localized areas, especially when full-size sanding tools feel clumsy. For shop users doing spot work, detail sanding, or finish correction, that smaller footprint helps keep sanding where you want it instead of wandering into surrounding material.\u003c\/p\u003e\n      \u003cp\u003eMirka positions this tool as a non-vacuum random orbital sander, so it is aimed at users who do not need onboard dust extraction through the tool itself. In the right setup, that can be a practical choice for quick repair work, dedicated finishing stations, or applications where a non-vac configuration is preferred. The grip backing supports quick abrasive changes when you are moving through sanding steps.\u003c\/p\u003e\n      \u003cp\u003eOn the build side, the available product data points to precision-molded composite construction, moisture-resistant composite rotors, and premium counterbalance bearings. In plain terms, that means the tool is built to hold up in real shop conditions while keeping weight manageable. At about 1.99 lbs, it stays light in the hand, which helps during repetitive work and makes it easier to control on delicate surfaces.\u003c\/p\u003e\n      \u003cp\u003eThe no-load speed is listed at 10,000 RPM, which is in the range you want for a compact random orbital air sander focused on finish work. Combined with the small orbit, that speed supports efficient sanding without turning the tool into something overly aggressive. The result is a sander that is better suited to controlled finishing passes than rough material removal.\u003c\/p\u003e\n      \u003cp\u003eThis Mirka sander makes the most sense for auto body techs, refinish work, detail sanding, and anyone doing small-area finish prep in a professional shop. Serious DIY users with an air setup can also get real value out of it, but this is not a general-purpose all-around sander for every sanding job. It is a more specialized tool, and that is exactly why it works well when the task is precision finishing rather than broad surface sanding.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails id=\"product-at-a-glance\" class=\"acc\"\u003e\n    \u003csummary\u003e\u003ch2\u003eAt a Glance\u003c\/h2\u003e\u003c\/summary\u003e\n    \u003cdiv class=\"acc-body\"\u003e\n      \u003cdiv class=\"stats-grid\"\u003e\n        \u003cdiv\u003e\n          \u003cdiv class=\"stat-value\"\u003e3 in.\u003c\/div\u003e\n          \u003cdiv class=\"stat-label\"\u003eBacking Pad\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\n          \u003cdiv class=\"stat-value\"\u003e2.5 mm\u003c\/div\u003e\n          \u003cdiv class=\"stat-label\"\u003eOrbit\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\n          \u003cdiv class=\"stat-value\"\u003e10,000 RPM\u003c\/div\u003e\n          \u003cdiv class=\"stat-label\"\u003eMax Speed\u003c\/div\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\n          \u003cdiv class=\"stat-value\"\u003e1.99 lbs\u003c\/div\u003e\n          \u003cdiv class=\"stat-label\"\u003eWeight\u003c\/div\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\u003eTool Type\u003c\/th\u003e\n          \u003ctd\u003ePneumatic random orbital finishing sander\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003ePower Source\u003c\/th\u003e\n          \u003ctd\u003eAir-powered\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBacking Pad Diameter\u003c\/th\u003e\n          \u003ctd\u003e3 in.\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eOrbit Size\u003c\/th\u003e\n          \u003ctd\u003e2.5 mm\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eNo-Load Speed\u003c\/th\u003e\n          \u003ctd\u003e10,000 RPM\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eWeight\u003c\/th\u003e\n          \u003ctd\u003e1.99 lbs\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\u003eDust Collection\u003c\/th\u003e\n          \u003ctd\u003eNon-vacuum\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/table\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\"\u003eRefinishing\u003c\/span\u003e\n        \u003cspan class=\"tag\"\u003eSpot Sanding\u003c\/span\u003e\n        \u003cspan class=\"tag\"\u003eFinish Prep\u003c\/span\u003e\n        \u003cspan class=\"tag\"\u003eDefect Repair\u003c\/span\u003e\n        \u003cspan class=\"tag\"\u003eDetail Sanding\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\"\u003eThe Mirka MR-3 is at its best when you keep it on small repairs and finishing passes. If you try to use a 3-inch, 2.5 mm orbit sander like a broad-area stock remover, you will work slower than you need to and wear out abrasives faster.\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails id=\"product-warranty\" class=\"acc\"\u003e\n    \u003csummary\u003e\u003ch2\u003eWarranty \u0026amp; Support\u003c\/h2\u003e\u003c\/summary\u003e\n    \u003cdiv class=\"acc-body\"\u003e\n      \u003cdiv class=\"warranty-row\"\u003e\n        \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/warranty.svg\" alt=\"warranty\" class=\"icon-sm\"\u003e\n        \u003cdiv class=\"warranty-text\"\u003e\n          Supplementary product data lists a 3-year protection period for this model.\n        \u003c\/div\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 MR-3 3\" dia. Finishing Sander Non-Vac Grip 2.5mm Orbit is a smart pick for precise finish work\u003c\/h3\u003e\n      \u003cp\u003eThis is a purpose-built small-area finishing sander that makes a lot of sense when control and surface quality matter more than brute-force removal.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWho it's for:\u003c\/strong\u003e Auto body techs, refinishers, and shop users who do spot sanding, defect correction, and detail finish prep with compressed air on hand.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWhy it stands out:\u003c\/strong\u003e The 3-inch pad, 2.5 mm orbit, and light pneumatic design make it easier to keep sanding focused and clean on small work areas.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWorth knowing:\u003c\/strong\u003e This is not the sander you buy for big flat panels or heavy removal. It is a specialist, and that is the whole point.\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 an electric or battery-powered sander?\u003c\/strong\u003e No. The Mirka MR-3 is an air-powered pneumatic random orbital sander.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWhat kind of work is the 2.5 mm orbit best for?\u003c\/strong\u003e It is best for fine finishing, spot sanding, and defect repair where a smoother surface result matters.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eDoes this sander use dust extraction through the tool?\u003c\/strong\u003e No. This model is listed as a non-vacuum version.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWhat size backing pad does it use?\u003c\/strong\u003e The Mirka MR-3 uses a 3-inch backing pad with grip attachment.\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":53385916252454,"sku":"MR-3","price":237.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/20260623116_1.jpg?v=1782171890","url":"https:\/\/www.toolnut.com\/products\/mirka-3-in-pneumatic-random-orbital-finishing-sander-non-vac-grip-2-5mm-orbit-mr-3","provider":"Tool Nut","version":"1.0","type":"link"}