{"product_id":"sandvik-coromant-7564391-milling-insert-r390-solid-carbide","title":"Sandvik Coromant 7564391 Milling Insert R390 Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SANDVIK COROMANT 7564391 is a solid carbide milling insert designed for use in R390 series face and shoulder milling cutters. It carries a multilayer CVD coating  -  TiCN, Al2O3, and TiN  -  that delivers wear resistance across a range of workpiece materials including steel, stainless steel, and cast iron. The insert measures 0.1875 inches thick with an inscribed circle of 0.3780 inches and a corner radius of 0.1220 inches. It is a single-sided, right-hand, parallelogram-shaped insert with a positive rake angle of 17 degrees and two cutting edges per insert. Licensed machinists and CNC mill operators install this insert in production and job-shop environments where consistent tool life and surface finish are priorities.\u003c\/p\u003e\u003cp\u003eThis insert is suited for milling operations on steel, stainless steel, and cast iron in both roughing and semi-finishing passes. The PM chip breaker geometry is optimized for positive-rake cutting action, reducing cutting forces on workpiece and spindle. The R390 series designation means this insert seats directly into compatible R390 cutter bodies. It is commonly used in horizontal and vertical machining centers running indexed milling heads on industrial components, structural parts, and machined castings. Minimum order quantity is 10 inserts, sold individually per package.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCVD multilayer coating: TiCN, Al2O3, and TiN for extended wear resistance across P, M, and K material grades\u003c\/li\u003e\n\u003cli\u003ePositive rake angle of 17 degrees reduces cutting forces during face and shoulder milling\u003c\/li\u003e\n\u003cli\u003eCorner radius of 0.1220 inches (3.10 mm) provides corner strength and surface finish consistency\u003c\/li\u003e\n\u003cli\u003eTwo cutting edges per insert maximize value per indexable unit\u003c\/li\u003e\n\u003cli\u003ePM chip breaker geometry suited for steel and stainless milling with controlled chip flow\u003c\/li\u003e\n\u003cli\u003eScrew-in insert holding method for secure, repeatable seating in the cutter body\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in R390 series cutter bodies. Insert size code is 170431 and the ANSI and ISO catalog designation is R390-17 04 31M-PM 4340. Confirmed compatible cutter series: R390.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified machinists or tooling technicians. Always power down and lock out the spindle before indexing or replacing inserts. Use the correct Torx or hex key as specified by the cutter body manufacturer to seat the crew to proper feel  -  do not overtighten, as this can crack the carbide substrate. Inspect the insert pocket for chips or debris before seating a new insert to ensure full, flat contact and accurate cutting geometry.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: R390\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Parallelogram\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: 4340\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiCN, Al2O3, TiN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.1220 inches (3.10 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.1875 inches (3\/16 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.3780 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 0.3780 inches (9.60 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.6181 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.1614 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake\u003c\/strong\u003e: Positive\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRake Angle\u003c\/strong\u003e: 17 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Edge Style\u003c\/strong\u003e: Corner Rounded\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: PM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle or Double Sided\u003c\/strong\u003e: Single\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Screw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel, Stainless Steel, Cast Iron\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: P40, M40, K40\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 90 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eANSI Code\u003c\/strong\u003e: R390-17 04 31M-PM 4340\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: R390-17 04 31M-PM 4340\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, ISO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23291601\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.012 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: SANDVIK COROMANT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 7564391\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51742947213618,"sku":"7564391","price":421.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/38ecf10af004d4d2005ddc0bc549caf7_5d3ecaa2-1fe8-4a67-b314-c2823e774b74.jpg?v=1788840634","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-7564391-milling-insert-r390-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}