{"product_id":"mirka-mr-525-5-in-pneumatic-non-vacuum-finishing-sander-with-2-5-mm-orbit-mr-525","title":"Mirka MR-525 5-in. Pneumatic Non-Vacuum Finishing Sander with 2.5 mm Orbit (MR-525)","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\u003e12,000 RPM Output\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eTrue 12,000 RPM performance helps this finishing sander remove fine sanding scratches quickly, so you keep the surface moving toward paint or finish instead of wasting time on slow cut.\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\u003eComfortable Composite Build\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003ePrecision molded composite parts keep the tool strong while helping reduce operator fatigue and sound. That matters when you're sanding for long stretches.\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\/accuracy.svg\" alt=\"accuracy\" class=\"aplusicon\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv\u003e\u003cstrong\u003eFine Finish Orbit\u003c\/strong\u003e\u003c\/div\u003e\n        \u003cdiv class=\"feature-card\"\u003eThe 2.5 mm random orbit is aimed at fine finishing work. It gives you a tighter scratch pattern than a more aggressive orbit, which is what you want before final coating.\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\u003e\u003cstrong\u003eMirka 5 Inch Pneumatic Non-Vacuum Finishing Sander with 2.5 mm Orbit\u003c\/strong\u003e is a lightweight air-powered random orbit finishing sander built for fine surface prep and finish sanding. This is a finishing sander designed for fine finishing sanding applications where surface quality matters more than heavy stock removal. Model Number: MR-525. If you want a compact pneumatic sander that stays comfortable in hand and leaves a refined scratch pattern, this is the kind of tool you reach for near the end of the prep process.\u003c\/p\u003e\n    \u003cp\u003eThe big selling point here is the 2.5 mm orbit paired with true 12,000 RPM performance. In plain terms, that means the Mirka MR-525 is tuned for final sanding steps, blending, and refining surfaces instead of hogging off material. That smaller orbit helps produce a finer finish, which is what you want before paint, stain, clear coat, or other finish work. For shops and finish-focused users, that can mean less rework and less time chasing swirl marks or deep scratches left by a more aggressive sander.\u003c\/p\u003e\n    \u003cp\u003eMirka built this pneumatic sander with precision molded composite components for strength and durability, but the real-world payoff is lower fatigue. A lighter, better-balanced body is easier to run through longer sanding sessions, especially when you're moving across panels, trim, cabinets, or other finish-sensitive surfaces. The tool is also counter-balanced for a specific 5 inch backup pad size with a 110 g weight, which helps it run smoother and feel more controlled.\u003c\/p\u003e\n    \u003cp\u003eJobsite and shop comfort matter too, especially with air tools that can spend hours in your hand. The composite construction helps reduce sound, and the listed 80 dB noise level gives you a clearer idea of what to expect in use. Mirka also calls out moisture-resistant composite rotors and premium counterweight bearings, which speaks directly to long-term reliability. Those are the details that matter if the tool is going to live in a busy body shop, cabinet shop, or production sanding setup where downtime costs money.\u003c\/p\u003e\n    \u003cp\u003eThe Mirka MR-525 is a non-vacuum sander out of the box, but it is not locked into that setup. MR-Series sanders can be converted to vacuum operation with an external or self-generating vacuum adapter. That gives you some flexibility if your sanding setup changes and you want better dust control later. The included 5 inch vinyl face backup pad can be used with PSA sticky-back style sandpaper, so users already set up around that abrasive format can get working without needing to change their whole system.\u003c\/p\u003e\n    \u003cp\u003eIn the box, you get the sander, a pad wrench, a bottle of air-tool oil, and a 5 inch vinyl face backup pad. That makes this more ready-to-run than bare-tool listings that leave you hunting for the basics. Since it is air powered, this tool makes the most sense for users who already have a compressor setup and prefer the light weight and simple serviceability of pneumatic sanding tools over cordless or electric models.\u003c\/p\u003e\n    \u003cp\u003eWho should buy it? The Mirka 5 Inch Pneumatic Non-Vacuum Finishing Sander with 2.5 mm Orbit is a smart fit for woodworkers, finish carpenters, paint and body users, and shop pros who need a dedicated fine finishing sander rather than a one-tool-does-everything option. If your priority is final surface quality, low fatigue, and dependable pneumatic performance, this is the right kind of sander. If you need aggressive removal first, start with a larger orbit tool and keep this one for the finish passes where it really earns its keep.\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 for Fine Surface Work\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\/20260623122_1.jpg\" alt=\"Mirka 5 Inch Pneumatic Non-Vacuum Finishing Sander with 2.5 mm Orbit on a clean shop surface with 5 inch backup pad installed for fine finishing and surface prep work\" class=\"tnblock-img\"\u003e\n      \u003c\/div\u003e\n      \u003cdiv class=\"copy\"\u003e\n        \u003cp\u003eThis Mirka air sander is aimed at the last stages of prep, where a clean scratch pattern matters. The smaller 2.5 mm orbit gives you more control over finish quality, making it a better choice for refinement than heavy removal.\u003c\/p\u003e\n        \u003cul\u003e\n          \u003cli\u003e2.5 mm random orbit suited for fine finishing sanding applications\u003c\/li\u003e\n          \u003cli\u003e5 inch pad size keeps it in the sweet spot for general finish sanding coverage and control\u003c\/li\u003e\n          \u003cli\u003eTrue 12,000 RPM performance helps maintain productivity without giving up surface quality\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\u003eMirka MR-525 finishing sander\u003c\/li\u003e\n        \u003cli\u003ePad wrench\u003c\/li\u003e\n        \u003cli\u003eBottle of air-tool oil\u003c\/li\u003e\n        \u003cli\u003e5 inch vinyl face backup pad\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n    \u003cdiv class=\"included-note\"\u003e\n      \u003cp\u003eThe included backup pad is designed for PSA sticky-back style sandpaper.\u003c\/p\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\u003ePower Source\u003c\/th\u003e\n        \u003ctd\u003eAir Powered\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003ePad Diameter\u003c\/th\u003e\n        \u003ctd\u003e5 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\u003e12,000 RPM\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eWeight\u003c\/th\u003e\n        \u003ctd\u003e1.69 lbs\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eNoise Level\u003c\/th\u003e\n        \u003ctd\u003e80 dB\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eConstruction\u003c\/th\u003e\n        \u003ctd\u003ePrecision molded composite parts\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003cth\u003eDust Collection\u003c\/th\u003e\n        \u003ctd\u003eNon-vacuum, convertible with optional 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\/vacuum-compatibility.svg\" alt=\"vacuum-compatibility\" class=\"icon-sm\"\u003e\n        \u003cdiv\u003e\n          \u003cstrong\u003eVacuum Setup\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\/diameter.svg\" alt=\"diameter\" class=\"icon-sm\"\u003e\n        \u003cdiv\u003e\n          \u003cstrong\u003eAbrasive Format\u003c\/strong\u003e\n          \u003cdiv class=\"compat-detail\"\u003eThe included 5 inch vinyl face backup pad can be used with PSA sticky-back style sandpaper.\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-built-for\" 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\"\u003eFinish Carpentry\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eFine Finishing\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eSurface Prep\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003ePaint Prep\u003c\/span\u003e\n      \u003cspan class=\"tag\"\u003eShop Use\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-525 for your final sanding passes after a more aggressive orbit sander has done the bulk removal. That smaller 2.5 mm orbit is where you clean up the scratch pattern and get the surface ready for finish.\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 5 Inch Pneumatic Non-Vacuum Finishing Sander with 2.5 mm Orbit is a smart closer\u003c\/h3\u003e\n    \u003cp\u003eThis is the kind of sander you buy when finish quality is the job, not an afterthought.\u003c\/p\u003e\n    \u003cul\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWho it's for:\u003c\/strong\u003e Pros and serious DIY users with an air setup who want a dedicated finishing sander for final prep and refined surface work.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhy it stands out:\u003c\/strong\u003e The 2.5 mm orbit, true 12,000 RPM speed, low-fatigue composite body, and smooth counter-balanced feel all point to one thing: cleaner finish work with less fuss.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWorth knowing:\u003c\/strong\u003e It is a non-vacuum pneumatic sander out of the box, so if dust collection is part of your setup, plan on adding the proper vacuum adapter.\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 vacuum sander?\u003c\/strong\u003e No. The MR-525 is a non-vacuum finishing sander as sold, but MR-Series sanders can be converted to vacuum operation with an external or self-generating vacuum adapter.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhat kind of sanding is this tool best for?\u003c\/strong\u003e It is best for fine finishing sanding applications where the 2.5 mm orbit helps produce a finer scratch pattern.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhat size sanding pad does it use?\u003c\/strong\u003e This sander uses a 5 inch backup pad.\u003c\/li\u003e\n      \u003cli\u003e\n\u003cstrong\u003eWhat powers this Mirka sander?\u003c\/strong\u003e It is air powered, so it is intended for use with a pneumatic setup rather than a battery or corded power source.\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":53385917366566,"sku":"MR-525","price":237.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/20260623122_1.jpg?v=1782171892","url":"https:\/\/www.toolnut.com\/products\/mirka-mr-525-5-in-pneumatic-non-vacuum-finishing-sander-with-2-5-mm-orbit-mr-525","provider":"Tool Nut","version":"1.0","type":"link"}