{"product_id":"sandvik-coromant-5909074-turning-insert-snmg644-smr-1115","title":"Sandvik Coromant 5909074 Turning Insert SNMG644-SMR 1115","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SANDVIK COROMANT 5909074 is a SNMG644-SMR 1115 series turning insert designed for precision metal-cutting applications in CNC turning operations. Built from solid carbide and coated with TiAlN and AlCr2O3 via a PVD process, this insert delivers thermal resistance and edge durability under demanding cutting conditions. It features a neutral hand orientation, a 55-degree included angle (square insert shape), a 3\/4-inch inscribed circle, a 1\/2-inch length, and a 1\/16-inch corner radius. The SMR chip breaker geometry is engineered to manage chip formation effectively in difficult-to-machine materials. Licensed machinists and CNC operators install this insert in compatible turning toolholders as part of the T-Max P series system.\u003c\/p\u003e\n\u003cp\u003eThis insert is primarily intended for machining stainless steel (ISO material code M) and is rated for secondary use on superalloys and titanium (ISO material code S). Typical applications include external and internal turning on CNC lathes in aerospace, energy, and industrial manufacturing environments where work-hardening and built-up edge are common challenges. The TiAlN and AlCr2O3 dual-coating stack supports elevated cutting speeds and extended tool life in these material groups. The SMR geometry aids in controlling stringy or tough chips generated when cutting austenitic and duplex stainless grades.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eTiAlN and AlCr2O3 dual-layer PVD coating for thermal stability and edge protection\u003c\/li\u003e\n  \u003cli\u003eSMR chip breaker geometry optimized for stainless steel and superalloy chip control\u003c\/li\u003e\n  \u003cli\u003e8 usable cutting edges per insert for extended insert economy\u003c\/li\u003e\n  \u003cli\u003eNeutral hand orientation compatible with standard SNMG-style toolholders\u003c\/li\u003e\n  \u003cli\u003eClamp and pin holding method for rigid, repeatable seating\u003c\/li\u003e\n  \u003cli\u003eISO designation SNMG190616-SMR 1115 for cross-reference ordering\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in SNMG-style turning toolholders that accept a 644 insert size with clamp and pin holding. ISO cross-reference designation is SNMG190616-SMR 1115. Verify toolholder pocket geometry and insert seat dimensions before installation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified CNC machinists or tool-room technicians. Power down and lock out the machine spindle before indexing or replacing inserts. Use the appropriate torx or hex key torque tool as specified by the toolholder manufacturer for the clamping screw — do not over-tighten by hand. Inspect the insert seat and clamp for debris or damage before seating a new insert to ensure proper contact and edge positioning.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: SNMG644-SMR\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: SNMG190616-SMR 1115\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: 1115\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiAlN \/ AlCr2O3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: SMR\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Square (55-degree included angle)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 0.5 inches (12.70 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.25 inches (6.35 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.75 inches (19.05 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0625 inches (1.59 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.312 inches (7.93 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 0 degrees\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 (ISO Code M)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: Superalloy and Titanium (ISO Code S)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: T-Max P\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23242105\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.7 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: 5909074\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51727359508786,"sku":"5909074","price":673.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/75936afc10d43fa1e4a802348f4209f7.jpg?v=1788676700","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-5909074-turning-insert-snmg644-smr-1115","provider":"Voomi Supply","version":"1.0","type":"link"}