{"product_id":"superior-abrasives-a020426-bore-polisher-120-grit-fine","title":"Superior Abrasives A020426 Bore Polisher 120 Grit Fine","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SUPERIOR ABRASIVES A020426 is a coated aluminum oxide bore polisher designed for finishing and polishing cylindrical bore surfaces in a range of materials. Built on the SK-4 series platform, it carries a 120 grit, fine grade abrasive surface that removes light stock and refines bore walls without aggressive cutting. The tool accepts a 1\/4 inch shank and is rated to 10,000 RPM, making it compatible with high-speed rotary tools commonly used in precision metalworking and fabrication environments. Licensed machinists, tool-and-die technicians, and skilled fabricators are the primary installers of this type of abrasive accessory.\u003c\/p\u003e\u003cp\u003eThis bore polisher is suited for residential shop, commercial fabrication, and industrial maintenance applications where bore surfaces require consistent finishing. It is designed for use in flex shaft tools and straight shaft die grinders. The effective bore diameter range is 3-1\/8 to 4 inches. Material compatibility includes ferrous metal, non-ferrous metal, stainless steel, exotic alloys, composite materials, and plastics, giving it broad utility across mixed-material work environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e120 grit aluminum oxide coated abrasive for fine-grade bore finishing\u003c\/li\u003e\n\u003cli\u003eEffective on bore diameters from 3-1\/8 to 4 inches\u003c\/li\u003e\n\u003cli\u003e1\/4 inch shank length for standard rotary tool compatibility\u003c\/li\u003e\n\u003cli\u003eRated to 10,000 RPM for use with flex shaft tools and straight shaft die grinders\u003c\/li\u003e\n\u003cli\u003eNo interleaf construction for consistent surface contact\u003c\/li\u003e\n\u003cli\u003eCompatible with ferrous metal, non-ferrous metal, stainless steel, exotic alloys, composites, and plastics\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with flex shaft tools and straight shaft die grinders. Suitable for bore diameters ranging from 3-1\/8 to 4 inches across ferrous metal, non-ferrous metal, stainless steel, exotic alloys, composite materials, and plastics.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eAlways ensure the die grinder or flex shaft tool is fully powered down and disconnected from its power source before mounting or removing the bore polisher. Confirm the tool spindle accepts a 1\/4 inch shank and that the tool is rated to handle the 10,000 RPM maximum speed of this abrasive. Wear appropriate eye protection and follow all applicable shop safety standards when operating rotary abrasive accessories. Do not exceed the rated RPM, as overspeed can cause abrasive failure.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbrasive Type\u003c\/strong\u003e: Coated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbrasive Material\u003c\/strong\u003e: Aluminum Oxide\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\u003eBore Diameter Range\u003c\/strong\u003e: 3-1\/8 to 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Size\u003c\/strong\u003e: 1\/4 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum RPM\u003c\/strong\u003e: 10,000\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: SK-4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterleaf\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Materials\u003c\/strong\u003e: Ferrous Metal, Non-Ferrous Metal, Stainless Steel, Exotic Alloy, Composite Material, Plastic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFor Use With\u003c\/strong\u003e: Flex Shaft Tool, Straight Shaft Die Grinder\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 3 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: SUPERIOR ABRASIVES\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: A020426\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SUPERIOR ABRASIVES","offers":[{"title":"Default Title","offer_id":67909751374130,"sku":"A020426","price":32.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/23e798e947558a4c87c937762b752173.jpg?v=1791191239","url":"https:\/\/voomisupply.com\/products\/superior-abrasives-a020426-bore-polisher-120-grit-fine","provider":"Voomi Supply","version":"1.0","type":"link"}