{"product_id":"osborn-0004702900-silicon-carbide-crimped-disc-brush","title":"Osborn 0004702900 Silicon Carbide Crimped Disc Brush","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSBORN 0004702900 is a 4-inch silicon carbide crimped disc brush rated at 120 grit for fine-grade surface finishing and deburring work. It mounts via a plain hole connector with a 7\/8-inch arbor hole and a 3\/4-inch shank diameter, making it compatible with standard bench and angle grinders. The crimped filament design allows consistent abrasive contact across irregular surfaces, and the round 0.04-inch diameter filaments deliver controlled material removal without aggressive gouging. At a maximum operating speed of 3,500 RPM, this brush is built for controlled finishing passes on demanding materials.\u003c\/p\u003e\n\u003cp\u003eThis disc brush is suited for surface prep, light deburring, blending, and edge finishing on cast aluminum, hardened alloy, and stainless steel workpieces. It is commonly used in fabrication shops, maintenance environments, and metalworking applications where a grinder-mounted abrasive brush is needed to reach contoured or recessed surfaces. The fine-grade silicon carbide abrasive cuts cleanly on hard metals without loading, making it a practical choice for finishing work that requires consistent scratch patterns.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e120 grit silicon carbide abrasive for fine-grade surface finishing\u003c\/li\u003e\n  \u003cli\u003eCrimped filament construction for flexible, consistent abrasive contact\u003c\/li\u003e\n  \u003cli\u003ePlain hole connector with 7\/8-inch arbor hole fits standard grinder arbors\u003c\/li\u003e\n  \u003cli\u003eRound filaments at 0.04-inch diameter for controlled, uniform scratch pattern\u003c\/li\u003e\n  \u003cli\u003eRated to 3,500 RPM maximum for safe grinder operation\u003c\/li\u003e\n  \u003cli\u003eSuitable for cast aluminum, hardened alloy, and stainless steel applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with grinders accepting a 7\/8-inch arbor hole and 3\/4-inch shank. Recommended material applications include cast aluminum, hardened alloy, and stainless steel.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by qualified personnel following the grinder manufacturer's mounting instructions. Confirm the grinder's rated RPM meets or exceeds the 3,500 RPM maximum before mounting. Always power down and disconnect the tool from its power source before installing or removing the brush. Wear appropriate PPE including eye protection and gloves during installation and operation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrush Diameter\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrit\u003c\/strong\u003e: 120\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGrade\u003c\/strong\u003e: Fine\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAbrasive Material\u003c\/strong\u003e: Silicon Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrush Type\u003c\/strong\u003e: Crimped Disc\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFilament Shape\u003c\/strong\u003e: Round\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFilament Diameter\u003c\/strong\u003e: 0.04 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTrim Length\u003c\/strong\u003e: 1.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eConnector Type\u003c\/strong\u003e: Plain Hole\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eArbor Hole Size\u003c\/strong\u003e: 0.875 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum RPM\u003c\/strong\u003e: 3,500\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrush Color\u003c\/strong\u003e: Black\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMachine Compatibility\u003c\/strong\u003e: Grinder\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Cast Aluminum, Hardened Alloy, Stainless Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.8 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: OSBORN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 0004702900\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSBORN","offers":[{"title":"Default Title","offer_id":51734446932274,"sku":"0004702900","price":157.29,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5f5667972b17eb098b62522d6cd21aab.jpg?v=1788763084","url":"https:\/\/voomisupply.com\/products\/osborn-0004702900-silicon-carbide-crimped-disc-brush","provider":"Voomi Supply","version":"1.0","type":"link"}