{"product_id":"3m-kp86398-quick-change-disc-120-grit-ceramic-3-inches","title":"3M KP86398 Quick-change Disc 120 Grit Ceramic 3 Inches","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe 3M KP86398 is a coated abrasive quick-change disc designed for use with Roloc TR and Type R attachment systems. It features a ceramic abrasive grain bonded to a polyester cloth backing, making it well suited for aggressive stock removal and surface blending on metal. At 120 grit (fine grade), it delivers a consistent scratch pattern for finishing passes before moving to finer media. Rated to 20,000 RPM, it is built for high-speed right-angle grinders and die grinders commonly used in metal fabrication, welding prep, and maintenance applications. Each disc measures 3 inches in diameter.\u003c\/p\u003e\n\u003cp\u003eThis disc is used in light to medium metalworking operations including weld seam blending, edge deburring, and surface conditioning on ferrous and non-ferrous metals. The orange ceramic grain provides a self-sharpening cutting action that extends disc life compared to aluminum oxide alternatives. The polyester cloth backing resists tearing under load and flexes to conform to slightly contoured surfaces. It is typically installed and used by metal fabricators, maintenance technicians, pipefitters, and welders in both shop and field environments. Sold in packs of 10.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCeramic abrasive grain delivers aggressive cut rate and extended disc life through self-sharpening action\u003c\/li\u003e\n  \u003cli\u003e120 grit fine grade produces a consistent surface finish suitable for pre-finishing and blending passes\u003c\/li\u003e\n  \u003cli\u003ePolyester cloth backing (YF weight) provides flexibility and tear resistance under load\u003c\/li\u003e\n  \u003cli\u003eRoloc TR quick-change attachment (Type R button) allows fast, tool-free disc swaps\u003c\/li\u003e\n  \u003cli\u003e20,000 RPM maximum speed rating compatible with standard die grinders and right-angle grinders\u003c\/li\u003e\n  \u003cli\u003e3 inch diameter suits tight-access work areas and standard Roloc TR backup pads\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with Roloc TR and Type R quick-change backup pads and grinders that accept 3 inch TR-style discs.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and disc changes should be performed with the grinder powered off and disconnected from its power source. Thread the disc onto a compatible Roloc TR backup pad by pressing and turning until the button locks securely. Do not exceed the 20,000 RPM maximum speed rating of the disc. Inspect each disc for tears, edge damage, or delamination before mounting, and replace any disc that shows visible defects.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 777F\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDisc Diameter\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAbrasive Material\u003c\/strong\u003e: Ceramic\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAbrasive Type\u003c\/strong\u003e: Coated\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\u003eDisc Color\u003c\/strong\u003e: Orange\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBacking Material\u003c\/strong\u003e: Polyester Cloth\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBacking Weight\u003c\/strong\u003e: YF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eQuick-Change Compatibility\u003c\/strong\u003e: Roloc TR\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAttaching System\u003c\/strong\u003e: Type R\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eButton Color\u003c\/strong\u003e: White\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum RPM\u003c\/strong\u003e: 20,000\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 10 discs\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.01 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: 3M\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: KP86398\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"3M","offers":[{"title":"Default Title","offer_id":51538340872498,"sku":"KP86398","price":78.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/569e1c3d81dce19d5ef81babca4d55a8.jpg?v=1785823321","url":"https:\/\/voomisupply.com\/products\/3m-kp86398-quick-change-disc-120-grit-ceramic-3-inches","provider":"Voomi Supply","version":"1.0","type":"link"}