{"product_id":"merit-abrasives-05539520420-hook-loop-disc-50-grit-4-5-in","title":"Merit Abrasives 05539520420 Hook Loop Disc 50 Grit 4.5 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe MERIT ABRASIVES 05539520420 is a 4.5-inch hook and loop abrasive disc designed for surface preparation, blending, and finishing applications. Built with a non-woven aluminum oxide construction, this disc delivers coarse-grade cutting action at 50 grit, making it well suited for removing rust, scale, weld spatter, and heavy surface contaminants. The flexible non-woven matrix conforms to irregular surfaces and contours without loading or glazing. It mounts quickly to any compatible hook and loop backing pad and runs at up to 13,000 RPM. Licensed tradespeople, fabricators, and surface prep technicians working in HVAC, plumbing, and light manufacturing will find this disc a reliable option for prep work before welding, coating, or assembly.\u003c\/p\u003e\n\u003cp\u003eThis disc is intended for use on metal surfaces where coarse material removal or aggressive blending is required. The 4.5-inch diameter fits standard right-angle grinders and disc sanders equipped with hook and loop pads. The brown non-woven construction handles both flat and contoured workpieces, and the absence of vacuum holes keeps the design simple and compatible with smooth-face backing pads. Typical applications include rust removal on pipe fittings, weld seam blending on sheet metal, and surface scuffing prior to primer or coating.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e50 grit coarse grade aluminum oxide abrasive for aggressive material removal\u003c\/li\u003e\n  \u003cli\u003eNon-woven flexible construction conforms to irregular and contoured surfaces\u003c\/li\u003e\n  \u003cli\u003eHook and loop attachment for fast disc changes without tools\u003c\/li\u003e\n  \u003cli\u003eRated up to 13,000 RPM for use with standard right-angle grinders\u003c\/li\u003e\n  \u003cli\u003eNo vacuum holes — compatible with smooth-face hook and loop backing pads\u003c\/li\u003e\n  \u003cli\u003eBrown disc color for easy grit identification in the shop\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with 4.5-inch hook and loop backing pads on right-angle grinders and disc sanders. No specific OEM model compatibility was provided in the product data.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall and remove this disc only with the grinder fully powered down and unplugged or locked out per applicable safety procedures. Verify the backing pad is rated for hook and loop attachment and that the tool RPM does not exceed the 13,000 RPM disc rating before operation. Inspect the disc for tears or damage before each use and replace if the abrasive material is worn or the backing is compromised. Eye protection, hearing protection, and appropriate gloves are standard PPE for abrasive disc operations.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDisc Diameter\u003c\/strong\u003e: 4.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrit\u003c\/strong\u003e: 50\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: Aluminum Oxide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAbrasive Type\u003c\/strong\u003e: Non-Woven\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDisc Color\u003c\/strong\u003e: Brown\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum RPM\u003c\/strong\u003e: 13,000\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlexible\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVacuum Holes\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.04 pounds\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: MERIT ABRASIVES\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 05539520420\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MERIT","offers":[{"title":"Default Title","offer_id":51562752508210,"sku":"05539520420","price":466.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/366747ca5eb5882e7a195be95a73ea5d.jpg?v=1786483881","url":"https:\/\/voomisupply.com\/products\/merit-abrasives-05539520420-hook-loop-disc-50-grit-4-5-in","provider":"Voomi Supply","version":"1.0","type":"link"}