{"product_id":"mirka-3-in-5-mm-pneumatic-random-orbit-finishing-sander-mr-350","title":"Mirka 3-in. 5 mm Pneumatic Random Orbit Finishing Sander (MR-350)","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\/speed.svg\" alt=\"speed\" class=\"aplusicon\"\u003e\n          \u003c\/div\u003e\n          \u003cdiv\u003e\u003cstrong\u003eFast Finish Work\u003c\/strong\u003e\u003c\/div\u003e\n          \u003cdiv class=\"feature-card\"\u003eThe Mirka MR-350 Finishing Sander runs at a true 12,000 RPM, so it keeps material removal moving without giving up the control you need for final surface prep.\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\/anti-vibration.svg\" alt=\"anti-vibration\" class=\"aplusicon\"\u003e\n          \u003c\/div\u003e\n          \u003cdiv\u003e\u003cstrong\u003eLess Fatigue\u003c\/strong\u003e\u003c\/div\u003e\n          \u003cdiv class=\"feature-card\"\u003ePrecision molded composite construction cuts weight and helps reduce noise, which matters when you are sanding for long stretches and want better comfort in hand.\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\u003eVacuum Ready Option\u003c\/strong\u003e\u003c\/div\u003e\n          \u003cdiv class=\"feature-card\"\u003eThis air powered finishing sander can be converted to vacuum operation with the proper adapter, making it easier to manage dust when cleaner sanding matters.\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 MR-350 Finishing Sander\u003c\/strong\u003e is a compact pneumatic finishing sander built for detail sanding, spot repair, and controlled surface prep in tighter work areas. This is a finishing sander designed for fine sanding and final surface preparation. Model Number: MR-350. With a 3 inch pad, 5 mm orbit, and air-powered drive, it is aimed at users who need a small-format sander that stays easy to control while still moving fast.\u003c\/p\u003e\n      \u003cp\u003eWhat makes this tool matter is the balance between speed and finesse. The true 12,000 RPM free speed gives the Mirka MR-350 Finishing Sander the output needed for productive finish sanding, while the 5 mm orbit helps it remove material efficiently without turning it into an aggressive roughing tool. On small panels, repair sections, edges, and other limited-access areas, that combination makes it easier to clean up a surface quickly and still leave it ready for the next step.\u003c\/p\u003e\n      \u003cp\u003eMirka built the MR-Series around precision molded composites, and that is not just a materials note for the spec sheet. The composite housing is there to keep the tool strong and durable while reducing operator fatigue during extended use. It also helps reduce sound compared to heavier all-metal designs, which is a real benefit in shops where sanders run all day. If you spend hours doing finish prep, comfort is not a luxury feature. It directly affects consistency and control.\u003c\/p\u003e\n      \u003cp\u003eThis sander is also counter-balanced for its specific backup pad size, which is one of those details experienced users care about right away. Proper balancing helps the tool run smoother, feel more planted in the hand, and stay more predictable on the work surface. Mirka also calls out moisture-resistant composite rotors, machined and balanced counterweights, and premium counterweight bearings, all of which point to the same thing: this tool is built for repeat use, not occasional hobby duty.\u003c\/p\u003e\n      \u003cp\u003eFrom a jobsite and shop-practicality standpoint, the Mirka MR-350 is straightforward. It is air powered, so it fits pneumatic setups where users want low tool weight and continuous runtime without battery swaps. It can also be converted to vacuum operation with a model-specific external or self-generating vacuum adapter. That matters if you are working in finishing environments where dust control improves surface quality and cleanup time.\u003c\/p\u003e\n      \u003cp\u003eThe included grip style hook and loop backup pad keeps abrasive changes simple, which is a good fit for workflows where you move through multiple grits during surface prep. The included pad wrench and bottle of air-tool oil are also practical touches. You are not just getting the motor body. You are getting the basic setup needed to put the tool into service.\u003c\/p\u003e\n      \u003cp\u003eWho should buy it? The best fit is automotive refinish work, body shop sanding, small-part finishing, woodworking detail prep, and any shop that already runs air tools and wants a compact random orbit style finishing sander for smaller areas. If your work is mostly large flat panels, you will probably want a bigger pad size. But if you need maneuverability, light weight, and smooth finish work in a smaller format, the MR-350 makes a lot of sense.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails id=\"product-benefits\" class=\"acc\"\u003e\n    \u003csummary\u003e\u003ch2\u003eCompact Control for Small-Area Sanding\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\/20260623118_1.jpg\" alt=\"Mirka MR-350 Finishing Sander with 3 inch hook and loop backup pad for finish sanding small panels, repair spots, and detail surface prep\" class=\"tnblock-img\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"copy\"\u003e\n          \u003cp\u003eThe smaller 3 inch pad size gives this sander an advantage when full-size sanders feel clumsy. It is easier to guide on tight work, curved sections, and repair zones where control matters as much as speed.\u003c\/p\u003e\n          \u003cul\u003e\n            \u003cli\u003e3 inch pad size for tighter sanding areas\u003c\/li\u003e\n            \u003cli\u003e5 mm orbit for efficient finish sanding and surface prep\u003c\/li\u003e\n            \u003cli\u003eCounter-balanced design matched to its backup pad size\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 MR-350 Finishing Sander\u003c\/li\u003e\n          \u003cli\u003e(1) Grip (Hook \u0026amp; Loop) backup pad\u003c\/li\u003e\n          \u003cli\u003e(1) Pad wrench\u003c\/li\u003e\n          \u003cli\u003e(1) Bottle of air-tool oil\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\u003eFinishing 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\u003ePad Size\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\u003e5 mm\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eNo-Load Speed\u003c\/th\u003e\n          \u003ctd\u003e12,000 RPM\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003ePad Type\u003c\/th\u003e\n          \u003ctd\u003eGrip (Hook \u0026amp; Loop) backup pad\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eHousing Material\u003c\/th\u003e\n          \u003ctd\u003ePrecision Molded Composites\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eVacuum Capability\u003c\/th\u003e\n          \u003ctd\u003eConvertible with model-specific vacuum adapter\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\/power-source.svg\" alt=\"power-source\" class=\"icon-sm\"\u003e\n          \u003cdiv\u003e\n            \u003cstrong\u003eAir Tool Setup\u003c\/strong\u003e\n            \u003cdiv class=\"compat-detail\"\u003eDesigned for pneumatic use, making it a good fit for shops and users already running compressed air tools.\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\u003eVacuum Conversion\u003c\/strong\u003e\n            \u003cdiv class=\"compat-detail\"\u003eMR-Series sanders can be converted to vacuum operation with an external or self-generating vacuum adapter.\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\/size.svg\" alt=\"size\" class=\"icon-sm\"\u003e\n          \u003cdiv\u003e\n            \u003cstrong\u003eAbrasive Attachment\u003c\/strong\u003e\n            \u003cdiv class=\"compat-detail\"\u003eIncludes a grip style hook and loop backup pad for quick abrasive changes.\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\"\u003eBody Shop Sanding\u003c\/span\u003e\n        \u003cspan class=\"tag\"\u003eWoodworking\u003c\/span\u003e\n        \u003cspan class=\"tag\"\u003eMetalworking\u003c\/span\u003e\n        \u003cspan class=\"tag\"\u003eFinish Sanding\u003c\/span\u003e\n        \u003cspan class=\"tag\"\u003eSpot Repair\u003c\/span\u003e\n        \u003cspan class=\"tag\"\u003eSmall Panel Prep\u003c\/span\u003e\n        \u003cspan class=\"tag\"\u003eDetail Surface Work\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 the MR-350 where a larger pad starts fighting the workpiece. On spot repairs and tighter sections, the 3 inch size lets you stay on the target area instead of sanding farther out than you need to.\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 MR-350 Finishing Sander is a smart pick for detail work\u003c\/h3\u003e\n      \u003cp\u003eIf you need a compact air sander that stays comfortable in hand and does clean finish work on smaller areas, this one checks the right boxes without getting complicated.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWho it's for:\u003c\/strong\u003e Automotive refinish users, woodworkers, and shop pros who need a small-format finishing sander for spot work and controlled surface prep.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWhy it stands out:\u003c\/strong\u003e The 3 inch size, 5 mm orbit, true 12,000 RPM speed, and composite build make it easy to handle without giving up productivity.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWorth knowing:\u003c\/strong\u003e This is an air-powered tool, so it makes the most sense if you already run a pneumatic setup. It is also focused on smaller-area finishing, not broad-panel sanding.\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 the Mirka MR-350 Finishing Sander air powered or electric?\u003c\/strong\u003e It is an air-powered finishing sander.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWhat size pad does this sander use?\u003c\/strong\u003e It uses a 3 inch backup pad.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWhat is the orbit size?\u003c\/strong\u003e The orbit size is 5 mm.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eCan this sander be used with dust extraction?\u003c\/strong\u003e Yes. MR-Series sanders can be converted to vacuum operation with the proper adapter.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eHow fast does it run?\u003c\/strong\u003e The listed free speed is 12,000 RPM.\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":53385916645670,"sku":"MR-350","price":237.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/20260623118_1.jpg?v=1782171892","url":"https:\/\/www.toolnut.com\/products\/mirka-3-in-5-mm-pneumatic-random-orbit-finishing-sander-mr-350","provider":"Tool Nut","version":"1.0","type":"link"}