{"product_id":"hertel-1000406-turning-insert-spg421-hc335-carbide","title":"Hertel 1000406 Turning Insert SPG421 HC335 Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL 1000406 is a solid carbide turning insert in the SPG421 style, designed for precision metal-turning operations on CNC and manual lathes. It carries a multilayer CVD coating of TiC, TiCN, and TiN under manufacturer grade HC335, providing wear resistance and thermal stability across a range of cutting conditions. The insert features a 0.5-inch inscribed circle, a 1\/64-inch corner radius, a 90-degree square shape, and a positive rake geometry. At 0.125 inches thick with an 11-degree relief angle, it is suited for light-to-medium finishing and semi-finishing passes. Machinists and CNC operators install this insert into compatible SPG-style toolholders using a clamp-type holding method.\u003c\/p\u003e\n\u003cp\u003eThis insert is part of the HERTEL KENDEX series and is rated for use on primary workpiece material group P (carbon and alloy steels) and secondary material group M (stainless steels). Typical applications include turning, facing, and light profiling on steel and stainless components in production and job-shop environments. The neutral hand orientation allows use in both left- and right-hand toolholder configurations. The maximum depth of cut is 0.049 inches (1.25 mm), making it appropriate for finishing and light semi-finishing cuts rather than heavy stock removal.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCVD multilayer coating: TiC, TiCN, and TiN for extended tool life on steel and stainless\u003c\/li\u003e\n  \u003cli\u003eHC335 carbide grade rated for material groups P and M\u003c\/li\u003e\n  \u003cli\u003ePositive rake geometry with 11-degree relief angle reduces cutting forces\u003c\/li\u003e\n  \u003cli\u003e0.5-inch inscribed circle and 90-degree square shape in SPG421 style\u003c\/li\u003e\n  \u003cli\u003eClamp-type holding method for secure seating in compatible toolholders\u003c\/li\u003e\n  \u003cli\u003eNeutral hand orientation compatible with both left- and right-hand holders\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in SPG-style clamp-type toolholders accepting a 0.5-inch inscribed circle square insert with tolerance code G and clearance code P. Part of the HERTEL KENDEX series.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified machinists or CNC setup technicians. Power down and lock out the machine before indexing or replacing inserts. Use the correct clamp screw torque per the toolholder manufacturer specifications and inspect the insert seat for chips or debris before seating the new insert. Do not exceed the rated maximum depth of cut of 0.049 inches to avoid insert fracture or premature edge failure.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: SPG421\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: HC335\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: TiC, TiCN, TiN (CVD)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Square (90 degrees)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.125 inches\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: 11 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRake\u003c\/strong\u003e: Positive\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHolding Method\u003c\/strong\u003e: Clamp\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.0492 inches (1.25 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: P (Carbon and Alloy Steels)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSecondary Workpiece Material\u003c\/strong\u003e: M (Stainless Steels)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C5, C6\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTolerance Code\u003c\/strong\u003e: G\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClearance Code\u003c\/strong\u003e: P\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: N (None)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: KENDEX\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1 pound\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: HERTEL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1000406\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51750661259570,"sku":"1000406","price":318.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/45eb7159d8ecfc171e123186bb325db7.jpg?v=1788918020","url":"https:\/\/voomisupply.com\/products\/hertel-1000406-turning-insert-spg421-hc335-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}