{"product_id":"3m-7000119478-flap-disc-577f-7-inch-40-grit","title":"3M 7000119478 Flap Disc 577F 7 Inch 40 Grit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe 3M 7000119478 is a Type 29 flap disc in the 577F series, engineered for high-pressure metalworking applications including weld removal, beveling, and sharp-edge finishing. The disc combines alumina zirconia mineral with a grinding aid on heavyweight polyester-backed flaps, delivering faster material removal than standard aluminum oxide abrasives. At 7 inches in diameter and 40 grit, it removes weld beads and heavy stock while simultaneously blending the surface, eliminating the need for a separate finishing step. Weighing 0.84 pounds, it is used by welders, fabricators, and metal finishing tradespeople.\u003c\/p\u003e\u003cp\u003eThis flap disc is suited to demanding industrial and fabrication environments where high stock removal and a consistent blended finish are required in a single operation. Typical applications include structural steel fabrication, pipeline work, heavy equipment repair, and general metalworking. The 40 grit rating makes it appropriate for aggressive grinding passes on ferrous and non-ferrous metals where surface prep speed is the priority.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAlumina zirconia mineral with grinding aid cuts faster than aluminum oxide across ferrous and non-ferrous metals\u003c\/li\u003e\n\u003cli\u003eHeavyweight polyester-backed flaps withstand high-pressure contact for extended disc life on demanding tasks\u003c\/li\u003e\n\u003cli\u003eFlap design combines grinding and blending in one pass, reducing total process steps\u003c\/li\u003e\n\u003cli\u003e7 inch diameter and 40 grit rating suited for aggressive weld removal and beveling\u003c\/li\u003e\n\u003cli\u003eQuick-change disc design reduces changeover time at the grinder\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement flap disc for use on standard 7 inch angle grinders and variable-speed grinders accepting Type 29 flap disc configurations.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eFlap discs of this diameter are installed and serviced by welders and metal fabricators using angle grinders rated for the disc size. Always power down and unplug the grinder before mounting or removing the disc. Verify that the grinder spindle speed rating meets or exceeds the disc maximum RPM before operation. Wear appropriate PPE including a face shield and gloves during grinding operations.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter\u003c\/strong\u003e: 7 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrit\u003c\/strong\u003e: 40\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbrasive Mineral\u003c\/strong\u003e: Alumina Zirconia\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBacking Material\u003c\/strong\u003e: Heavyweight Polyester\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisc Type\u003c\/strong\u003e: Flap\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.84 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: 7000119478\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"3M","offers":[{"title":"Default Title","offer_id":51344811426098,"sku":"7000119478","price":5138.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310533340.jpg?v=1782044104","url":"https:\/\/voomisupply.com\/products\/3m-7000119478-flap-disc-577f-7-inch-40-grit","provider":"Voomi Supply","version":"1.0","type":"link"}