{"product_id":"weiler-94849-knotted-wheel-brush-4-inch-carbon-steel","title":"Weiler 94849 Knotted Wheel Brush 4 Inch Carbon Steel","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe WEILER 94849 is a knotted wire wheel brush designed for aggressive surface preparation on metal, welds, and castings. Built with carbon steel fill material and a 5\/8-11 threaded arbor hole, it mounts directly to angle grinders and compatible threaded spindle tools. The 4-inch outside diameter and knotted wire construction deliver high-impact scrubbing action, making it well suited for removing rust, mill scale, weld spatter, and heavy surface contamination. Rated to 20,000 RPM, it handles the output of most standard angle grinders used in fabrication and maintenance work. Installation and operation require proper face shield, gloves, and adherence to tool guard requirements.\u003c\/p\u003e\u003cp\u003eThis wheel brush is used across metal fabrication shops, structural steel work, pipeline maintenance, and general industrial maintenance applications. The knotted wire configuration is preferred when aggressive material removal is the priority over surface finish. It is a common tool for welders and ironworkers preparing joint surfaces and cleaning post-weld beads. The 3\/8-inch face width and 7\/8-inch trim length make it practical for surface work where a narrower contact profile is needed.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eKnotted carbon steel wire for aggressive rust, scale, and spatter removal\u003c\/li\u003e\n\u003cli\u003e4-inch outside diameter fits standard angle grinder applications\u003c\/li\u003e\n\u003cli\u003e5\/8-11 threaded arbor for direct spindle mounting without adapter\u003c\/li\u003e\n\u003cli\u003e20,000 RPM maximum speed rating\u003c\/li\u003e\n\u003cli\u003e3\/8-inch face width and 7\/8-inch trim length for controlled contact\u003c\/li\u003e\n\u003cli\u003eNo shank included — mounts via threaded arbor hole\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with angle grinders and bench grinders equipped with a 5\/8-11 threaded spindle. No separate adapter or shank is included or required for threaded-spindle tools.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and use of wire wheel brushes must comply with ANSI B7.1 safety standards for abrasive and power brush tools. Always power down and disconnect the grinder before mounting or removing the brush. Confirm the tool spindle speed does not exceed the 20,000 RPM rating marked on the brush. Operators should wear a full face shield, leather gloves, and appropriate PPE, as wire fragments can become projectiles during use.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFace Width\u003c\/strong\u003e: 0.375 inches (3\/8 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrim Length\u003c\/strong\u003e: 0.875 inches (7\/8 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eArbor Hole Thread Size\u003c\/strong\u003e: 5\/8-11\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWire Type\u003c\/strong\u003e: Knotted\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFill Material\u003c\/strong\u003e: Carbon Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilament Wire Diameter Range\u003c\/strong\u003e: 0.0100 - 0.0199 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum RPM\u003c\/strong\u003e: 20,000\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMount Type\u003c\/strong\u003e: Threaded\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Included\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 94849\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"WEILER","offers":[{"title":"Default Title","offer_id":51544600183090,"sku":"94849","price":24.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6be5ee2c4c96fdb6d8f6767b97ae9245.jpg?v=1785931060","url":"https:\/\/voomisupply.com\/products\/weiler-94849-knotted-wheel-brush-4-inch-carbon-steel","provider":"Voomi Supply","version":"1.0","type":"link"}