{"product_id":"weiler-50163-ceramic-flap-disc-4-5-in-type-29-80-grit","title":"Weiler 50163 Ceramic Flap Disc 4.5 in Type 29 80 Grit","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe WEILER 50163 is a Tiger 3D MAX ceramic abrasive flap disc engineered for high-rate metal removal on demanding applications. Built with 3D precision-shaped ceramic grain and a Type 29 conical profile, it delivers aggressive cutting action and extended disc life compared to conventional abrasive flaps. The phenolic backing plate provides rigid support through heavy grinding passes. At 4.5 inches in diameter with a 7\/8-inch arbor hole, it mounts directly to standard right-angle grinders. Rated to 13,000 RPM, this disc is suited for sustained production grinding and finishing across a wide range of ferrous metals and hard alloys. Grit designation is 80+C, indicating a coarse-to-medium ceramic grain optimized for rapid stock removal.\u003c\/p\u003e\n\u003cp\u003eThe 50163 is used in metal fabrication, shipbuilding, pressure vessel fabrication, and multi-pass weld blending operations where throughput and operator endurance both matter. It performs in grinding and finishing modes, making it a practical choice when a single disc needs to move between removing weld crowns and blending surfaces. Compatible with spanner nut mounting systems on right-angle grinders, it fits the standard 7\/8-inch arbor found on most 4.5-inch angle grinder platforms used in industrial and field fabrication environments.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e3D precision-shaped ceramic grain for aggressive cut rate and longer disc life than standard abrasives\u003c\/li\u003e\n  \u003cli\u003eType 29 conical profile increases contact surface area for faster stock removal on flat and contoured workpieces\u003c\/li\u003e\n  \u003cli\u003ePhenolic backing plate provides rigid support during heavy grinding passes\u003c\/li\u003e\n  \u003cli\u003e80+C grit designation balances material removal speed with surface finish control\u003c\/li\u003e\n  \u003cli\u003e13,000 RPM maximum rating suits standard 4.5-inch right-angle grinder speeds\u003c\/li\u003e\n  \u003cli\u003eRoHS compliant construction\u003c\/li\u003e\n  \u003cli\u003eStandard flap density for consistent performance across full disc life\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with right-angle grinders fitted with a 7\/8-inch arbor and spanner nut mounting. Suitable for metal fabrication, shipbuilding, pressure vessel, and multi-pass grinding and finishing applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified grinding operators or metalworkers following ANSI B7.1 safety standards. Power down and disconnect the grinder before mounting or removing the disc. Confirm the grinder free-speed RPM does not exceed the 13,000 RPM maximum rating marked on the disc before operation. Use the appropriate spanner wrench and spanner nut to seat the disc securely on the arbor — never use an impact wrench or oversized nut to force the flap disc into position.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDiameter\u003c\/strong\u003e: 4.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eArbor Hole Size\u003c\/strong\u003e: 0.875 inches (7\/8 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum RPM\u003c\/strong\u003e: 13,000\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrit\u003c\/strong\u003e: 80+C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrain Type\u003c\/strong\u003e: Ceramic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDisc Type\u003c\/strong\u003e: Type 29 Conical\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFlap Density\u003c\/strong\u003e: Standard\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBacking Plate Material\u003c\/strong\u003e: Phenolic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatible Tool\u003c\/strong\u003e: Right Angle Grinder\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMounting\u003c\/strong\u003e: Spanner Nuts\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eANSI Standard\u003c\/strong\u003e: B7.1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRoHS\u003c\/strong\u003e: Compliant\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eColor\u003c\/strong\u003e: Rust\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard Pack Quantity\u003c\/strong\u003e: 10 per pack\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUPC\u003c\/strong\u003e: 012382501631\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: WEILER\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 50163\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WEILER","offers":[{"title":"Default Title","offer_id":51525225644338,"sku":"50163","price":124.3,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/28a338c174059694b12a04f5fddad592.png?v=1785467784","url":"https:\/\/voomisupply.com\/products\/weiler-50163-ceramic-flap-disc-4-5-in-type-29-80-grit","provider":"Voomi Supply","version":"1.0","type":"link"}