{"product_id":"mirka-iridium-2-75-in-x-15-75-in-400-grit-sanding-sheets-140-hole-grip-50-pack-24-38p-400","title":"Mirka Iridium 2.75-in. x 15.75-in. 400 Grit Sanding Sheets, 140-Hole Grip, 50-Pack (24-38P-400)","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\u003e400 Grit Finish\u003c\/strong\u003e\u003c\/div\u003e\n          \u003cdiv class=\"feature-card\"\u003eThe 400 grit rating is built for fine sanding and surface refinement when you need a smoother finish before the next step.\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\u003e140-Hole Pattern\u003c\/strong\u003e\u003c\/div\u003e\n          \u003cdiv class=\"feature-card\"\u003eThe perforated 140-hole layout is made for dust extraction setups that use matching hole patterns, helping keep abrasive surfaces clearer while you sand.\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\/size.svg\" alt=\"size\" class=\"aplusicon\"\u003e\n          \u003c\/div\u003e\n          \u003cdiv\u003e\u003cstrong\u003eStrip Sheet Format\u003c\/strong\u003e\u003c\/div\u003e\n          \u003cdiv class=\"feature-card\"\u003eThis Mirka sanding sheet comes in a 2.75 x 15.75 inch grip-backed strip, sized for sanders that take this specific sheet format.\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 24-38P-400 Iridium 2.75 x 15.75 Grip 140H Perf 400 Sandpaper Sheets\u003c\/strong\u003e are perforated abrasive sheets sold in a 50-pack for fine sanding work. This is a \u003cstrong\u003esandpaper sheet\u003c\/strong\u003e designed for \u003cstrong\u003efine surface sanding and finish prep\u003c\/strong\u003e. Model Number: \u003cstrong\u003e24-38P-400\u003c\/strong\u003e. If you run a sander that uses this 2.75 x 15.75 inch grip-backed, 140-hole sheet format, this is the kind of consumable that matters because fit, hole pattern, and grit all affect finish quality and dust collection performance.\u003c\/p\u003e\n      \u003cp\u003eThe key spec here is the combination of \u003cstrong\u003e400 grit\u003c\/strong\u003e, \u003cstrong\u003egrip backing\u003c\/strong\u003e, and a \u003cstrong\u003e140-hole perforation pattern\u003c\/strong\u003e. The 400 grit rating puts this sheet in the fine-sanding range, where the goal is not aggressive stock removal but leveling, refining, and getting a surface ready for the next stage. The grip backing matters because it is built for quick attachment and removal on compatible hook-and-loop style sanding pads. The 140-hole pattern matters because it is meant to line up with matching dust extraction systems, which can help reduce loading and keep the abrasive cutting more consistently.\u003c\/p\u003e\n      \u003cp\u003eMirka's Iridium line is widely recognized for sanding applications where finish quality and consistency matter. Even with limited source data, the product naming tells you what you need to know to avoid ordering the wrong sheet: size, backing type, hole count, and grit are all spelled out. That is important with sanding abrasives because a sheet that is close in size but wrong in length, hole pattern, or attachment style can be useless on the machine you own.\u003c\/p\u003e\n      \u003cp\u003eThis product is sold as a \u003cstrong\u003epack of 50 sheets\u003c\/strong\u003e, which makes more sense for users who go through abrasives regularly rather than somebody buying one or two sheets for a one-off repair. A larger pack helps keep the exact same grit and sheet pattern on hand, which is useful when you want predictable finish results from start to finish on repeat work.\u003c\/p\u003e\n      \u003cp\u003eFrom a practical jobsite and shop standpoint, the perforated format is the detail worth paying attention to. On a compatible sander, the hole pattern supports airflow through the pad, which is what helps move dust away from the work surface. That usually means less clogging, cleaner sanding, and less wasted time changing loaded sheets before they are truly spent.\u003c\/p\u003e\n      \u003cp\u003eThis Mirka abrasive is best for users who already know their machine takes a \u003cstrong\u003e2.75 x 15.75 inch grip sheet with 140 holes\u003c\/strong\u003e and who need a fine-grit sanding sheet in quantity. It makes the most sense for finish sanding workflows, prep between stages, and other jobs where surface quality matters more than fast material removal. If your priority is coarse stock removal, this is the wrong grit. If your priority is controlled, finer sanding with a specific sheet format, this is the right kind of product to look at.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/details\u003e\n\n  \u003cdetails id=\"product-benefits\" class=\"acc\"\u003e\n    \u003csummary\u003e\u003ch2\u003eFine Grit for Surface 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\/20260624106_1.jpg\" alt=\"Mirka 24-38P-400 Iridium sandpaper sheet in 2.75 x 15.75 inch grip format with 140-hole perforation for fine sanding and dust extraction on compatible sanding equipment\" class=\"tnblock-img\"\u003e\n        \u003c\/div\u003e\n        \u003cdiv class=\"copy\"\u003e\n          \u003cp\u003eThis Mirka sanding sheet is built for the kind of work where surface quality matters. With a 400 grit rating, it is aimed at refinement and prep rather than heavy removal.\u003c\/p\u003e\n          \u003cul\u003e\n            \u003cli\u003e400 grit supports fine sanding and finish-stage prep\u003c\/li\u003e\n            \u003cli\u003e2.75 x 15.75 inch sheet format fits machines that use this strip size\u003c\/li\u003e\n            \u003cli\u003eGrip backing allows quick changes on compatible hook-and-loop pads\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 Iridium 2.75 x 15.75 in Grip 140H Perf 400 sandpaper sheets\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\u003eProduct Type\u003c\/th\u003e\n          \u003ctd\u003eSandpaper Sheets\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eSeries\u003c\/th\u003e\n          \u003ctd\u003eIridium\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eSheet Size\u003c\/th\u003e\n          \u003ctd\u003e2.75 x 15.75 in\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\u003eHole Pattern\u003c\/th\u003e\n          \u003ctd\u003e140-hole perforated\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eGrit\u003c\/th\u003e\n          \u003ctd\u003e400\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003ePackage Quantity\u003c\/th\u003e\n          \u003ctd\u003e50\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003cth\u003eMade In\u003c\/th\u003e\n          \u003ctd\u003eFinland\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\/size.svg\" alt=\"size\" class=\"icon-sm\"\u003e\n          \u003cdiv\u003e\n            \u003cstrong\u003eSheet Size\u003c\/strong\u003e\n            \u003cdiv class=\"compat-detail\"\u003eFits sanding tools that use a 2.75 x 15.75 inch abrasive sheet format.\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\u003eHole Pattern\u003c\/strong\u003e\n            \u003cdiv class=\"compat-detail\"\u003eDesigned for pads and dust extraction setups that match a 140-hole perforation pattern.\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\/material.svg\" alt=\"material\" class=\"icon-sm\"\u003e\n          \u003cdiv\u003e\n            \u003cstrong\u003eAttachment Style\u003c\/strong\u003e\n            \u003cdiv class=\"compat-detail\"\u003eGrip backing is intended for compatible hook-and-loop style 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-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 24-38P-400 Iridium Sandpaper Sheets Keep the Decision Simple\u003c\/h3\u003e\n      \u003cp\u003eIf you already run this sheet size and hole pattern, this is the kind of abrasive that makes sense: fine grit, grip-backed, and sold in a real working pack instead of a token handful.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWho it's for:\u003c\/strong\u003e Users who need 400 grit sanding sheets for compatible strip sanders or sanding systems that take 2.75 x 15.75 inch, 140-hole grip sheets.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWhy it stands out:\u003c\/strong\u003e The format is clearly defined, the 140-hole pattern supports dust extraction on matching pads, and the 50-pack is a practical quantity for repeat work.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWorth knowing:\u003c\/strong\u003e With abrasives, fit is everything. Check your machine's sheet size, hole pattern, and backing style before ordering, because close is not good enough here.\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 grit is this Mirka Iridium sheet?\u003c\/strong\u003e It is 400 grit.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWhat size is the sheet?\u003c\/strong\u003e The sheet size is 2.75 x 15.75 inches.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eDoes it use a perforated hole pattern?\u003c\/strong\u003e Yes. It uses a 140-hole perforated pattern.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eHow many sheets come in a pack?\u003c\/strong\u003e The package quantity is 50 sheets.\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":53385935880486,"sku":"24-38P-400-MIRKA","price":58.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0933\/1582\/5958\/files\/20260624106_1.jpg?v=1782171960","url":"https:\/\/www.toolnut.com\/products\/mirka-iridium-2-75-in-x-15-75-in-400-grit-sanding-sheets-140-hole-grip-50-pack-24-38p-400","provider":"Tool Nut","version":"1.0","type":"link"}