{"product_id":"sandvik-coromant-5730840-turning-insert-dcmt21-51-mm-1105","title":"Sandvik Coromant 5730840 Turning Insert DCMT21.51-MM 1105","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SANDVIK COROMANT 5730840 is a solid carbide turning insert in the DCMT21.51-MM 1105 geometry, part of the CoroTurn 107 series. It features a 55-degree diamond insert shape (Shape Code D) with a TiAlN coating applied via PVD process, delivering wear resistance and thermal stability during turning operations. The inscribed circle measures 0.25 inches (1\/4 inch), insert length is 0.2894 inches, and corner radius is 0.0156 inches (1\/64 inch). With 2 cutting edges and an MM chip breaker, this insert is suited for finishing and semi-finishing passes where consistent chip control and edge integrity are required. Licensed HVAC and machining professionals handling precision metal removal operations install and index these inserts as part of routine tooling maintenance.\u003c\/p\u003e\n\u003cp\u003eThis insert is designed primarily for steel workpieces and is rated for secondary use on stainless steel, superalloys, and titanium. The CoroTurn 107 series targets external turning and profiling applications in both light and medium-duty material removal. It is held in place via screw clamping (Insert Holding Method: Screw) and follows a neutral hand orientation, making it compatible with standard DCMT-style toolholders. The ISO designation for this insert is DCMT 07 02 04-MM 1105. Typical applications include CNC lathe turning operations where tight tolerances and controlled chip evacuation are priorities.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eTiAlN coating via PVD process for high heat and wear resistance during turning\u003c\/li\u003e\n  \u003cli\u003e55-degree diamond insert shape with 2 cutting edges for versatile profiling\u003c\/li\u003e\n  \u003cli\u003eMM chip breaker geometry optimized for controlled chip evacuation\u003c\/li\u003e\n  \u003cli\u003eScrew-held mounting with Clearance Code C and Tolerance Code M for consistent seating\u003c\/li\u003e\n  \u003cli\u003ePrimary workpiece material rating for steel; secondary ratings for stainless steel, superalloy, and titanium\u003c\/li\u003e\n  \u003cli\u003ePVD TiAlN coating preserves sharp edge geometry compared to CVD alternatives\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eThis insert carries ISO designation DCMT 07 02 04-MM 1105 and is part of the SANDVIK COROMANT CoroTurn 107 series. It is compatible with DCMT-style screw-clamp toolholders designed for 55-degree diamond inserts with a 1\/4-inch inscribed circle. Confirm toolholder pocket geometry and screw size before indexing.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eIndexing and replacement of turning inserts is performed by machinists and CNC tooling technicians. Power down and lock out the machine spindle before accessing the toolholder. Use the appropriate Torx or hex key to loosen the clamping screw, seat the new insert flush against the pocket locating surfaces, and torque the screw per the toolholder manufacturer's specification. Inspect the insert pocket for chips or debris before seating to avoid micro-fracture of the cutting edge.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: DCMT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Diamond (55 degrees)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Shape Code\u003c\/strong\u003e: D\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: 1105\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: CoroTurn 107\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: MM\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiAlN\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: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.25 inches (1\/4 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 0.2894 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.0938 inches (3\/32 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0156 inches (1\/64 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 7 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClearance Code\u003c\/strong\u003e: C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTolerance Code\u003c\/strong\u003e: M\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Screw\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.1102 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Materials\u003c\/strong\u003e: Steel, Stainless Steel, Superalloy, Titanium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: DCMT 07 02 04-MM 1105\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: 0.1 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 3.74 inches (L) x 1.54 inches (W) x 0.43 inches (H)\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: 5730840\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51730962776370,"sku":"5730840","price":215.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7c00f0f166042e6e5ec4d03ecd95719b.jpg?v=1788725364","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-5730840-turning-insert-dcmt21-51-mm-1105","provider":"Voomi Supply","version":"1.0","type":"link"}