{"product_id":"sandvik-coromant-7861089-snmg542-qm-4425-turning-insert","title":"Sandvik Coromant 7861089 SNMG542-QM 4425 Turning Insert","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SANDVIK COROMANT 7861089 is a square-shaped carbide turning insert designed for external and internal turning operations on CNC lathes and turning centers. Carrying the ANSI designation SNMG542 and ISO designation SNMG 15 06 08, this insert belongs to the T-Max P series and is manufactured in grade 4425. It features a CVD-applied multilayer coating of Al2O3, TiCN, and TiN, which delivers high wear resistance balanced with adequate toughness for steel machining. The inscribed circle measures 0.625 inches and the corner radius is 0.0313 inches. The QM chip breaker geometry is optimized for roughing and medium machining operations. A licensed machinist or CNC operator installs and services this insert.\u003c\/p\u003e\u003cp\u003eThis insert is suited for roughing and medium machining of steel workpieces, classified under ISO material group P. The grade 4425 falls in the high wear-resistance to moderate wear-resistance and toughness range, making it a reliable choice for interrupted cuts and continuous passes on carbon and alloy steels. It uses a negative side clearance with a neutral hand orientation, allowing it to fit standard SNMG-style toolholders that accept clamp or screw clamping methods. Typical applications include shaft turning, facing, and profiling operations in general machining environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eGrade 4425 CVD coating: multilayer Al2O3, TiCN, and TiN for steel turning durability\u003c\/li\u003e\n\u003cli\u003eQM chip breaker geometry supports both roughing and medium machining passes\u003c\/li\u003e\n\u003cli\u003eSquare insert shape (S) with negative side clearance and neutral hand for versatile mounting\u003c\/li\u003e\n\u003cli\u003eInscribed circle of 0.625 inches with 0.0313-inch corner radius\u003c\/li\u003e\n\u003cli\u003eANSI insert code SNMG542 and ISO code SNMG 15 06 08 for cross-reference compatibility\u003c\/li\u003e\n\u003cli\u003eClamp and screw holding method supported\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with SNMG-style toolholders that accept clamp or screw clamping, with ANSI size code 542 and ISO size code 150608. Part of the SANDVIK COROMANT T-Max P series. Verify toolholder pocket geometry and clamping method before installation.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by a qualified CNC machinist or toolroom technician. Power down and lock out the machine spindle before changing inserts. Use the appropriate torque wrench and seating tool recommended by the toolholder manufacturer to secure the insert without cracking the carbide substrate. Inspect the insert pocket for debris, damage, or wear before seating a new insert.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eANSI Insert Code\u003c\/strong\u003e: SNMG542\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Insert Code\u003c\/strong\u003e: SNMG 15 06 08\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: T-Max P\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: 4425\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: S - Square\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: QM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChip Breaker Operation\u003c\/strong\u003e: Roughing and Medium Machining\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Al2O3, TiCN, TiN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: CVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSide Clearance\u003c\/strong\u003e: Negative\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClearance Code\u003c\/strong\u003e: N\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTolerance Code\u003c\/strong\u003e: M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.625 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0313 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel (ISO P) - High to Moderate Wear-Resistance and Toughness\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Clamp and Screw\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.54 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: 7861089\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51737060049202,"sku":"7861089","price":431.51,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/3414b740075dbd785c7751f2571a9e41_4479ba45-1643-4763-ba8c-42601ac259c9.jpg?v=1788783745","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-7861089-snmg542-qm-4425-turning-insert","provider":"Voomi Supply","version":"1.0","type":"link"}