{"product_id":"sandvik-coromant-7860852-turning-insert-dnmg433-qm-4425","title":"Sandvik Coromant 7860852 Turning Insert DNMG433-QM 4425","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe SANDVIK COROMANT 7860852 is a DNMG433-QM 4425 turning insert designed for external turning operations on CNC lathes and turning centers. This solid carbide insert features a CVD-applied multilayer coating of TiCN, Al2O3, and TiN, engineered to deliver wear resistance and thermal stability during continuous and interrupted cuts. The 55-degree diamond shape (Insert Shape Code D) with a neutral hand orientation provides versatile approach angle options. With a 1.19 mm corner radius and an inscribed circle of 0.5 inches (12.70 mm), this insert is sized for moderate to heavy material removal passes. It belongs to Sandvik Coromant's T-Max P series, a platform built for high-productivity steel turning.\u003c\/p\u003e\n\u003cp\u003eThis insert is intended for machining steel (ISO material group P) as its primary workpiece material, with cast iron (ISO material group K) as a secondary application. The QM chip breaker geometry is suited for medium turning operations where chip control and surface finish consistency are priorities. It is typically installed by CNC machinists and toolroom technicians in production and job-shop environments running turning centers with appropriate DNMG-style toolholders and clamping systems. The ISO designation for this insert is DNMG 15 04 12-QM 4425.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCVD multilayer coating: TiCN, Al2O3, and TiN for extended tool life on steel and cast iron\u003c\/li\u003e\n  \u003cli\u003e55-degree diamond insert shape with neutral hand for flexible toolholder compatibility\u003c\/li\u003e\n  \u003cli\u003e1.19 mm corner radius for a balance of edge strength and surface finish\u003c\/li\u003e\n  \u003cli\u003eQM chip breaker geometry optimized for medium turning and reliable chip evacuation\u003c\/li\u003e\n  \u003cli\u003e4 cutting edges per insert for cost-effective indexing\u003c\/li\u003e\n  \u003cli\u003eT-Max P series platform designed for high-productivity external turning\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in DNMG-style toolholders accepting a 0.5-inch inscribed circle insert with clamp or screw holding methods. Compatible with toolholders conforming to the DNMG 15 04 insert size code. Primary workpiece material is steel (ISO P); secondary is cast iron (ISO K).\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified CNC machinists or toolroom technicians. Ensure the machine spindle is fully stopped and the turret is in a safe index position before indexing or replacing inserts. Use the appropriate torx or insert-clamping hardware specified by the toolholder manufacturer to secure the insert seat. Inspect the insert pocket and shim for wear or damage before seating a new insert to maintain correct cutting geometry.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: DNMG 15 04 12-QM 4425\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Diamond, 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\u003eManufacturer Grade\u003c\/strong\u003e: 4425\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: TiCN, Al2O3, TiN (CVD process)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.5 inches (12.70 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 1.19 mm (0.0469 inches)\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\u003eHole Diameter\u003c\/strong\u003e: 0.2030 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\u003eChip Breaker\u003c\/strong\u003e: QM\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHolding Method\u003c\/strong\u003e: Clamp, Screw\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 0 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel (ISO P)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: Cast Iron (ISO K)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: T-Max P\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 5.08 inches L x 2.13 inches W x 0.53 inches H\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.03 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23242105\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: 7860852\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51751480688946,"sku":"7860852","price":358.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ca985a21bd453479683c87ec646700c5_ebd860d9-26d8-4561-aa6e-eb5e8c519480.jpg?v=1788923574","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-7860852-turning-insert-dnmg433-qm-4425","provider":"Voomi Supply","version":"1.0","type":"link"}