{"product_id":"dewalt-dw8309-zirconia-flap-disc-t29-4-5in-80-grit","title":"Dewalt DW8309 Zirconia Flap Disc T29 4.5in 80 Grit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe DEWALT DW8309 is a Type 29 zirconia alumina flap disc designed for aggressive grinding and blending on metal surfaces. Measuring 4.5 inches in diameter with a 7\/8-inch arbor hole, it runs at 80 grit — a medium-coarse abrasive that removes material efficiently while leaving a finish suitable for follow-up work. The conical T29 profile keeps the disc face angled against the workpiece, maximizing contact on flat and contoured surfaces. Fabricators, ironworkers, and maintenance tradespeople reach for this disc when they need consistent cut rate without swapping tools between grinding and blending passes.\u003c\/p\u003e\n\u003cp\u003eThis disc fits standard 4.5-inch angle grinders common across fabrication shops, job-site metalwork, and maintenance applications. The 80-grit rating is well suited for weld blending, surface prep before coating or painting, and light stock removal on mild steel, stainless steel, and other ferrous metals. The 7\/8-inch arbor fits the most widely used grinder spindle size in the trade. Sold individually; minimum order quantity is 10 units.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eType 29 conical flap disc geometry for aggressive stock removal and blending in a single tool\u003c\/li\u003e\n  \u003cli\u003eZirconia alumina abrasive grain for durability and consistent cut rate on ferrous metals\u003c\/li\u003e\n  \u003cli\u003e80 grit — medium-coarse for weld blending and surface prep\u003c\/li\u003e\n  \u003cli\u003e4.5-inch diameter with 7\/8-inch arbor fits standard angle grinders\u003c\/li\u003e\n  \u003cli\u003eLightweight at 0.11 pounds for reduced operator fatigue during extended use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard replacement or consumable flap disc for 4.5-inch angle grinders with a 7\/8-inch arbor spindle. Suitable for use on mild steel, stainless steel, and other ferrous metal surfaces.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eFlap discs are installed and changed by metalworking tradespeople and general maintenance mechanics using a standard angle grinder wrench. Always power down and unplug or lock out the grinder before mounting or removing a disc. Confirm the grinder RPM rating meets or exceeds the disc RPM rating before use. Wear appropriate PPE including eye protection and gloves when operating angle grinders.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDisc Type\u003c\/strong\u003e: Type 29 (Conical)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAbrasive Material\u003c\/strong\u003e: Zirconia Alumina\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrit\u003c\/strong\u003e: 80\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter\u003c\/strong\u003e: 4.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eArbor Size\u003c\/strong\u003e: 7\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.11 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 028877310459\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: DEWALT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: DW8309\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"DEWALT","offers":[{"title":"Default Title","offer_id":51344747168050,"sku":"DW8309","price":81.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310494256.jpg?v=1782042457","url":"https:\/\/voomisupply.com\/products\/dewalt-dw8309-zirconia-flap-disc-t29-4-5in-80-grit","provider":"Voomi Supply","version":"1.0","type":"link"}