{"product_id":"3m-7100104902-flap-disc-4-5-inch-80-grit-type-29","title":"3M 7100104902 Flap Disc 4.5 Inch 80 Grit Type 29","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe 3M 7100104902 is a Type 29 flap disc designed for medium to high-pressure metal grinding applications including beveling, weld removal, and edge deburring. Built with 3M Precision-Shaped Grain bonded to a durable polyester backing, this 4.5-inch disc cuts fast and holds up under aggressive unit pressure. At 80 grit, it removes material efficiently while leaving a finish quality suitable for applications where surface appearance matters. Licensed HVAC technicians, fabricators, pipefitters, and welders working with sheet metal, structural steel, and pipe regularly reach for this disc when consistent cut rate and finish control are both priorities.\u003c\/p\u003e\u003cp\u003eThis flap disc is suited for right-angle grinder use in fabrication shops, field pipe work, and structural steel applications. The Type 29 conical geometry provides an aggressive contact angle that concentrates pressure at the work surface, making it effective for weld blending and beveling on flat and curved stock. It performs on a variety of metals including carbon steel, stainless steel, and aluminum. Each flap progressively breaks down during use, continuously exposing fresh abrasive mineral so cut rate stays consistent from first use to last.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e3M Precision-Shaped Grain for fast, consistent material removal throughout disc life\u003c\/li\u003e\n\u003cli\u003eType 29 conical geometry optimized for aggressive grinding, beveling, and weld removal\u003c\/li\u003e\n\u003cli\u003eDurable polyester backing withstands high unit pressure without delaminating\u003c\/li\u003e\n\u003cli\u003eProgressive flap breakdown exposes fresh mineral, maintaining cut rate over the full disc life\u003c\/li\u003e\n\u003cli\u003eLower gouging risk compared to fiber discs and bonded abrasive wheels\u003c\/li\u003e\n\u003cli\u003e80 grit delivers a balance of stock removal speed and acceptable surface finish\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with right-angle grinders accepting 4.5-inch Type 29 flap discs.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis disc is installed and operated by fabricators, pipefitters, welders, and metal tradespeople using right-angle grinders. Always confirm the grinder RPM rating meets or exceeds the disc maximum RPM before mounting. Inspect the disc for damage before each use and discard any disc showing tears, delamination, or missing flaps. Wear appropriate PPE including a face shield, hearing protection, and gloves during operation.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiameter\u003c\/strong\u003e: 4.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrit\u003c\/strong\u003e: 80\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisc Type\u003c\/strong\u003e: Type 29 (Right Angle)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBacking Material\u003c\/strong\u003e: Polyester\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbrasive Grain\u003c\/strong\u003e: 3M Precision-Shaped Grain\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Weight\u003c\/strong\u003e: 4.2 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Length\u003c\/strong\u003e: 8.88 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Width\u003c\/strong\u003e: 5.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Height\u003c\/strong\u003e: 6.13 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit of Measure\u003c\/strong\u003e: Each\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 076308644173\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: 7100104902\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"3M","offers":[{"title":"Default Title","offer_id":51344404087090,"sku":"7100104902","price":154.15,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/310535964.jpg?v=1782035095","url":"https:\/\/voomisupply.com\/products\/3m-7100104902-flap-disc-4-5-inch-80-grit-type-29","provider":"Voomi Supply","version":"1.0","type":"link"}