{"product_id":"sandvik-coromant-5891394-dnmg431sf-1125-turning-insert","title":"Sandvik Coromant 5891394 DNMG431SF 1125 Turning Insert","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SANDVIK COROMANT 5891394 is a DNMG431SF 1125 grade carbide turning insert designed for precision finishing operations on stainless steel and superalloy workpieces. Part of the T-Max P series, it features a PVD-applied TiAlN and AlCr2O3 dual-layer coating that delivers high wear resistance while maintaining edge toughness. The 55-degree diamond (rhombic) insert shape, neutral hand orientation, and SF chip breaker geometry make it well-suited for consistent, controlled finishing cuts. With four usable cutting edges per insert, it offers extended tool life per unit. Licensed machinists and CNC turning center operators are the primary users of this insert.\u003c\/p\u003e\u003cp\u003eThis insert is intended for turning applications where surface finish and dimensional accuracy are the primary goals. It performs best on stainless steel (ISO material group M) and special or super alloys including titanium (ISO material group S), covering a range from moderate to high wear-resistance demands. Typical installation scenarios include external and internal turning on CNC lathes and turning centers in job shop, aerospace, and precision manufacturing environments. The SF chip breaker is specifically optimized for light, finishing-depth cuts on these difficult-to-machine materials.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eTiAlN and AlCr2O3 PVD coating for high wear resistance on stainless steel and superalloys\u003c\/li\u003e\n\u003cli\u003e55-degree diamond insert shape with SF finishing chip breaker geometry\u003c\/li\u003e\n\u003cli\u003eFour cutting edges per insert for improved economy\u003c\/li\u003e\n\u003cli\u003eNeutral hand orientation for flexible toolholder compatibility\u003c\/li\u003e\n\u003cli\u003eMaximum depth of cut of 0.252 inches (6.40 mm) for finishing passes\u003c\/li\u003e\n\u003cli\u003eCompatible with clamp and pin insert holding methods\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in DNMG-style toolholders that accept a 1\/2-inch inscribed circle insert with clamp or pin holding. Optimized for machining stainless steel (ISO M) and special or super alloys including titanium (ISO S). Refer to the SANDVIK COROMANT T-Max P toolholder lineup for confirmed holder compatibility.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInsert seating and clamping should be performed by a qualified machinist with the machine spindle fully stopped and all drives disengaged. Ensure the toolholder pocket is clean and free of chips or debris before seating the insert to prevent rocking or uneven contact. Clamp torque should follow the toolholder manufacturer specifications for DNMG-style clamping mechanisms. Index or replace the insert when surface finish or dimensional tolerance begins to degrade, not after catastrophic edge failure.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eANSI Insert Code\u003c\/strong\u003e: DNMG431\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Insert Code\u003c\/strong\u003e: DNMG 15 04 04-SF 1125\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: 1125\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: D - Diamond (Rhombic) 55 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: SF (Finishing)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiAlN and AlCr2O3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.500 inches (12.70 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 0.610 inches (15.50 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.1875 inches (4.76 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0157 inches (0.40 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.252 inches (6.40 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.203 inches (5.16 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 0 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSide Clearance\u003c\/strong\u003e: Negative\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance Code\u003c\/strong\u003e: M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance Code\u003c\/strong\u003e: N\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Clamp and Pin\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: Superalloy and Titanium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: T-Max P\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Weight\u003c\/strong\u003e: 0.3 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: SANDVIK COROMANT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5891394\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51750186254642,"sku":"5891394","price":393.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/8ca525840eb0fc2ef88965521212a53a_d164e0d9-bbb0-403d-b301-35753320187f.jpg?v=1788914186","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-5891394-dnmg431sf-1125-turning-insert","provider":"Voomi Supply","version":"1.0","type":"link"}