{"product_id":"sandvik-coromant-6398198-cutoff-insert-4mm-corocut-qd","title":"Sandvik Coromant 6398198 Cutoff Insert 4mm Corocut Qd","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe SANDVIK COROMANT 6398198 is a solid carbide cutoff insert designed for parting and grooving operations on CNC lathes and turning centers. Manufactured to the CoroCut QD series specification, it features a 4 mm cutting width (0.1575 inches) and a neutral lead angle of 0 degrees, making it suited for straight parting cuts with balanced radial forces. The insert is PVD-coated with a TiCN\/Al2O3\/TiN multilayer coating in grade 1135, which provides wear resistance and edge stability during continuous or interrupted cutting. Overall length is 12 mm (0.4724 inches). Clamp-style holding secures the insert in compatible QD-series toolholders. Machinists and CNC operators working in job shops or production environments install this insert as a direct replacement or standard stocking item.\u003c\/p\u003e\u003cp\u003eThis insert is used in parting and grooving applications on turning machines handling a range of workpiece materials. The CR chipbreaker geometry is designed to manage chip formation during cutoff operations, reducing the risk of chip jamming in the cut zone. The neutral hand and 7-degree relief angle suit applications where the insert engages the workpiece perpendicular to the feed axis. A corner radius of 0.30 mm (0.0118 inches) provides a controlled edge finish at the base of the parting groove. Typical users include production machinists and toolroom operators performing high-volume or precision parting work.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e4 mm cutting width (0.1575 inches) for standard parting and grooving operations\u003c\/li\u003e\n\u003cli\u003eSolid carbide construction with PVD-applied TiCN\/Al2O3\/TiN coating in grade 1135\u003c\/li\u003e\n\u003cli\u003eNeutral lead angle and neutral hand for straight, balanced cutoff cuts\u003c\/li\u003e\n\u003cli\u003eCR chipbreaker geometry aids chip control during parting\u003c\/li\u003e\n\u003cli\u003e0.30 mm corner radius (0.0118 inches) for controlled groove floor finish\u003c\/li\u003e\n\u003cli\u003eClamp-style insert holding for secure seating in QD-series toolholders\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a replacement insert for CoroCut QD series toolholders accepting size H insert seats. Catalog reference number QD-NH-0400-0003-CR 1135.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified machinists or CNC toolroom technicians. Power down and lock out the machine before changing inserts. Seat the insert fully against the pocket walls and clamp securely before resuming cutting; an improperly seated carbide insert can fracture under cutting loads. Handle solid carbide inserts carefully to avoid chipping the cutting edge prior to use.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Series\u003c\/strong\u003e: CoroCut QD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: QD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Size Code\u003c\/strong\u003e: H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: 1135\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Width\u003c\/strong\u003e: 4.00 mm (0.1575 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 12.00 mm (0.4724 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Width\u003c\/strong\u003e: 4.00 mm (0.1575 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.30 mm (0.0118 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLead Angle\u003c\/strong\u003e: 0 degrees, Neutral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 7.00 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChipbreaker\u003c\/strong\u003e: CR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: TiCN\/Al2O3\/TiN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Clamp\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFull Radius\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Weight\u003c\/strong\u003e: 0.1 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eItem Package Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 10\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23242105\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: 6398198\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SANDVIK COROMANT","offers":[{"title":"Default Title","offer_id":51727311634738,"sku":"6398198","price":381.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/cde18a8e395c547ebb506fee6f9045f2.jpg?v=1788676186","url":"https:\/\/voomisupply.com\/products\/sandvik-coromant-6398198-cutoff-insert-4mm-corocut-qd","provider":"Voomi Supply","version":"1.0","type":"link"}