{"product_id":"norton-69957308016-sd-3-ball-double-cut-carbide-rotary-bur","title":"Norton 69957308016 SD-3 Ball Double Cut Carbide Rotary Bur","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe NORTON 69957308016 is a tungsten carbide rotary bur designed for aggressive material removal in metalworking and fabrication applications. Built to the SD-3 industry specification, this ball-shaped double cut bur features a 3\/8 inch cutting diameter and a 5\/16 inch length of cut. The double cut pattern produces a cross-hatch tooth geometry that removes material quickly while leaving a smoother finish than single cut. The 1\/4 inch shank is a standard size compatible with most die grinders and rotary tools. At 25,000 RPM maximum speed, it handles heavy stock removal and deburring tasks efficiently. Machinists, pipefitters, and metalworkers are the primary installers and users of this tool.\u003c\/p\u003e\n\u003cp\u003eThis bur is rated for use on a broad range of metals including 300 Series and 400 Series stainless steel, cast iron, copper, hard and soft carbon steel, titanium, and tool steel. It is well suited for deburring weld seams, porting and shaping, enlarging holes, and removing casting flash in both shop and field environments. The 2-1\/8 inch overall length gives adequate reach in tight spaces without excessive overhang. This bur suits production shops, maintenance facilities, and pipe fabrication operations where consistent material removal on hard metals is required.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eTungsten carbide head for extended service life on hard and abrasive metals\u003c\/li\u003e\n  \u003cli\u003eDouble cut tooth pattern for faster stock removal and smoother surface finish\u003c\/li\u003e\n  \u003cli\u003eBall head geometry for contour work, blending, and surface finishing in curved areas\u003c\/li\u003e\n  \u003cli\u003eRated to 25,000 RPM for compatibility with high-speed die grinders\u003c\/li\u003e\n  \u003cli\u003eStandard 1\/4 inch shank fits most rotary tool and die grinder collets\u003c\/li\u003e\n  \u003cli\u003eSD-3 industry specification for consistent sizing and interchangeability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use on 300 Series stainless, 400 Series stainless, cast iron, copper, hard carbon steel, soft carbon steel, titanium, and tool steel. Fits any die grinder or rotary tool equipped with a 1\/4 inch collet.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall the shank fully into a properly sized 1\/4 inch collet and tighten securely before operation. Always verify the tool speed rating of the receiving die grinder does not exceed 25,000 RPM. Wear appropriate eye protection and gloves when operating rotary burs. Inspect the bur for chips or cracks before each use and do not operate a damaged bur.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndustry Specification\u003c\/strong\u003e: SD-3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Shape\u003c\/strong\u003e: Ball\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTooth Style\u003c\/strong\u003e: Double Cut\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 3\/8 inches (0.3750 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 5\/16 inches (0.3125 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2-1\/8 inches (2.125 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 1\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Material\u003c\/strong\u003e: Tungsten Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Coating\u003c\/strong\u003e: Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum RPM\u003c\/strong\u003e: 25,000\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: 300 Series Stainless, 400 Series Stainless, Cast Iron, Copper, Hard Carbon Steel, Soft Carbon Steel, Titanium, Tool Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.05 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23251706\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: NORTON\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 69957308016\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"NORTON","offers":[{"title":"Default Title","offer_id":51542741057842,"sku":"69957308016","price":38.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/188a7a981fc1c9e80f5b3838f7234829.jpg?v=1785905894","url":"https:\/\/voomisupply.com\/products\/norton-69957308016-sd-3-ball-double-cut-carbide-rotary-bur","provider":"Voomi Supply","version":"1.0","type":"link"}