{"product_id":"3m-7100077044-quick-change-disc-3-inch-40-grit-ceramic-roloc-tsm","title":"3M 7100077044 Quick-change Disc 3 Inch 40 Grit Ceramic Roloc Tsm","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe 3M 7100077044 is a quick-change abrasive disc engineered for aggressive material removal in grinding and finishing applications. Part of the 3M 947A series, it uses a premium ceramic alumina abrasive on a polyester cloth backing rated at an X-weight. The 3-inch diameter disc mounts via the Roloc TSM attaching system, allowing fast one-handed disc changes without tools. Rated to 20000 RPM, it handles demanding stock removal on metal, weld seams, and surface prep work. The coarse 40 grit and maroon ceramic abrasive make it well suited for cutting through scale, corrosion, or base material quickly. A silver button locks the disc securely to compatible Roloc TSM backup pads.\u003c\/p\u003e\u003cp\u003eThis disc is used in fabrication shops, maintenance facilities, and industrial service environments where fast disc changes and consistent cut rates matter. Typical applications include weld blending, rust removal, deburring, and surface conditioning on ferrous and non-ferrous metals. The coated ceramic construction resists loading and maintains cut rate longer than aluminum oxide alternatives on hard alloys and stainless. Licensed tradespeople in HVAC fabrication, pipefitting, and structural work commonly use discs in this class for field prep and shop work.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePremium ceramic alumina abrasive for high cut rate and extended disc life on hard metals\u003c\/li\u003e\n\u003cli\u003eRoloc TSM attaching system enables fast one-handed disc changes on compatible backup pads\u003c\/li\u003e\n\u003cli\u003e40 grit coarse grade for aggressive stock removal, weld blending, and rust removal\u003c\/li\u003e\n\u003cli\u003ePolyester cloth X-weight backing resists tearing under load at high RPM\u003c\/li\u003e\n\u003cli\u003e20000 RPM maximum speed rating suits most right-angle and die grinders\u003c\/li\u003e\n\u003cli\u003eMaroon color coding aids quick identification of grit grade at the worksite\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with Roloc TSM quick-change backup pads and holders. Verify that the backup pad and grinder are rated to match or exceed the 20000 RPM disc rating before use.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by pressing the disc button onto a compatible Roloc TSM backup pad until it clicks and seats securely. Power down and disconnect the grinder from its power source before mounting or removing any disc. Confirm the grinder RPM rating meets or exceeds the disc maximum before operating. Inspect the disc for cracks or damage before each use and replace any disc that shows signs of wear through to the backing.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 947A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisc Diameter\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrit\u003c\/strong\u003e: 40\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade\u003c\/strong\u003e: Coarse\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbrasive Material\u003c\/strong\u003e: Premium Ceramic Alumina\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbrasive Type\u003c\/strong\u003e: Coated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAttaching System\u003c\/strong\u003e: Roloc TSM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBacking Material\u003c\/strong\u003e: Polyester Cloth\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBacking Weight\u003c\/strong\u003e: X\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisc Color\u003c\/strong\u003e: Maroon\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eButton Color\u003c\/strong\u003e: Silver\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum RPM\u003c\/strong\u003e: 20000\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: 3M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 7100077044\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"3M","offers":[{"title":"Default Title","offer_id":51695045280050,"sku":"7100077044","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/188a286a94785226dfa48fb2d5c5386d.jpg?v=1788330798","url":"https:\/\/voomisupply.com\/products\/3m-7100077044-quick-change-disc-3-inch-40-grit-ceramic-roloc-tsm","provider":"Voomi Supply","version":"1.0","type":"link"}