{"product_id":"norton-66623399001-flap-disc-60-grit-type-27-4-5-inch","title":"Norton 66623399001 Flap Disc 60 Grit Type 27 4.5 Inch","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe NORTON 66623399001 is a Type 27 ceramic alumina flap disc designed for aggressive material removal on metal, weld seams, and fabricated surfaces. Rated to 13,300 RPM and available in 60 grit (medium grade), this disc delivers fast stock removal with a longer service life than standard aluminum oxide alternatives. The polyester backing resists heat and flex fatigue during extended grinding passes. At 4.5 inches in diameter with a 5\/8-11 arbor attachment, it mounts directly to standard angle grinders used in fabrication, structural, and pipe welding applications. The trimmable flap design allows the operator to expose fresh abrasive as the disc wears, extending usable life on the job.\u003c\/p\u003e\u003cp\u003eThis flap disc is suited for use in metal fabrication shops, structural steel work, pipeline welding, and general weld blending. The Type 27 flat-profile design is appropriate for flat and edge grinding where a low grinding angle is required. Grinding professionals, pipefitters, ironworkers, and welding fabricators typically reach for this disc when working on carbon steel, stainless, and hard-facing alloys that demand a more durable abrasive grain than conventional aluminum oxide.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCeramic alumina abrasive grain for longer disc life and faster cut rates versus aluminum oxide\u003c\/li\u003e\n\u003cli\u003e60 grit medium grade for aggressive stock removal and weld blending\u003c\/li\u003e\n\u003cli\u003eType 27 flat profile suited for flat surface and edge grinding applications\u003c\/li\u003e\n\u003cli\u003ePolyester backing resists heat buildup and flex fatigue during prolonged use\u003c\/li\u003e\n\u003cli\u003eTrimmable flap construction exposes fresh grain as disc wears, maximizing disc life\u003c\/li\u003e\n\u003cli\u003e5\/8-11 arbor fits standard angle grinders without adapters\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with standard 4.5 inch angle grinders equipped with a 5\/8-11 threaded spindle. Confirm your grinder's no-load RPM does not exceed the disc's 13,300 RPM maximum rating before mounting.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by qualified personnel following grinder and abrasive manufacturer guidelines. Always power down and unplug the angle grinder before mounting or removing a flap disc. Inspect the disc for cracks, tears, or damage before each use and do not mount a disc that shows any signs of defect. Eye protection, gloves, and a face shield are standard PPE when operating angle grinders with abrasive discs.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisc Diameter\u003c\/strong\u003e: 4.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter Hole Size\u003c\/strong\u003e: 5\/8-11\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlap Disc Type\u003c\/strong\u003e: Type 27\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrit\u003c\/strong\u003e: 60\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGrade\u003c\/strong\u003e: Medium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbrasive Material\u003c\/strong\u003e: Ceramic Alumina\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbrasive Type\u003c\/strong\u003e: Coated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBacking Material\u003c\/strong\u003e: Polyester\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAttachment Type\u003c\/strong\u003e: Arbor\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum RPM\u003c\/strong\u003e: 13,300\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrimmable\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisc Color\u003c\/strong\u003e: Green\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 13 inches x 6 inches x 5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1 pound\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: NORTON\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 66623399001\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NORTON","offers":[{"title":"Default Title","offer_id":51539534610738,"sku":"66623399001","price":105.91,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7c3495cc35784d388816f0e2aa5e2add.jpg?v=1785842572","url":"https:\/\/voomisupply.com\/products\/norton-66623399001-flap-disc-60-grit-type-27-4-5-inch","provider":"Voomi Supply","version":"1.0","type":"link"}