{"product_id":"sandvik-coromant-6971855-milling-insert-r390-carbide","title":"Sandvik Coromant 6971855 Milling Insert R390 Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SANDVIK COROMANT 6971855 is a solid carbide milling insert designed for use in R390 series face and shoulder milling cutters. Manufactured to ANSI and ISO standards under grade designation 1130, this insert features a parallelogram shape with a positive rake angle of 22 degrees and a relief angle of 19 degrees. The AlTiCrN coating is applied via PVD process, providing wear resistance and thermal stability across a wide range of cutting applications. With 2 cutting edges, a corner radius of 0.0945 inches, and a maximum depth of cut of 15.70 mm, this insert is suited for productive metal removal in demanding machining environments. It is installed and replaced by machinists and CNC tooling technicians.\u003c\/p\u003e\n\u003cp\u003eThis insert is intended for use in R390 series milling cutter bodies and is engineered to machine steel, stainless steel, non-ferrous metals, superalloys, titanium, and hard materials. The PM chip breaker geometry supports stable chip formation across varying feed rates and material conditions. Typical applications include shoulder milling, face milling, and ramping operations on CNC machining centers in both production and job-shop environments. The right-hand cutting orientation and screw-clamping method are consistent with standard R390 toolholder configurations.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide substrate with AlTiCrN PVD coating for extended tool life in steel and stainless steel\u003c\/li\u003e\n  \u003cli\u003ePM chip breaker geometry supports reliable chip control across multiple workpiece materials\u003c\/li\u003e\n  \u003cli\u003ePositive rake angle of 22 degrees reduces cutting forces and heat generation\u003c\/li\u003e\n  \u003cli\u003eCorner radius of 0.0945 inches reduces stress concentration at the cutting edge\u003c\/li\u003e\n  \u003cli\u003eMaximum depth of cut of 15.70 mm suits both roughing and semi-finishing passes\u003c\/li\u003e\n  \u003cli\u003eScrew-clamping insert holding method provides secure, repeatable seating in the cutter body\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with R390 series milling cutter bodies. ANSI and ISO code R390-17 04 24E-PM 1130 identifies direct fitment within the R390 cutter series. Compatible material grades P30, M15, and N15 cover a broad range of workpiece materials including steel, stainless steel, and non-ferrous metals.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation and replacement of milling inserts should be performed by qualified machinists or CNC tooling technicians with the machine fully powered down and locked out per applicable lockout\/tagout procedures. Use a calibrated torque screwdriver appropriate for the insert screw size to avoid over-torquing the clamping screw, which can cause insert seat damage or screw failure. Inspect the insert pocket and seating surfaces for chips or debris before installing a new insert. Handle carbide inserts with care to avoid chipping the cutting edges prior to use.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\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\u003eManufacturer Grade\u003c\/strong\u003e: 1130\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: AlTiCrN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\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: 22 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 19 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0945 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.1875 inches (4.76 mm)\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\u003eLength\u003c\/strong\u003e: 0.6181 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\u003eHole Diameter\u003c\/strong\u003e: 0.1614 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.6181 inches (15.70 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Right Hand\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 Holding Method\u003c\/strong\u003e: Screw\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 90 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\u003c\/strong\u003e: Steel, Stainless Steel, Non-Ferrous Metal, Superalloys and Titanium, Hard Material\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: P30, M15, N15\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eANSI Code\u003c\/strong\u003e: R390-17 04 24E-PM 1130\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: R390-17 04 24E-PM 1130\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, ISO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.03 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: SANDVIK COROMANT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 6971855\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51739553431858,"sku":"6971855","price":502.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/834aa23dc56a54fde8a41e73c1e59e1e_03417108-b852-499a-88b2-9699146e7650.jpg?v=1788816153","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-6971855-milling-insert-r390-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}