{"product_id":"kennametal-5591991-turning-insert-cnmg433up-kcm25b-carbide","title":"Kennametal 5591991 Turning Insert CNMG433UP KCM25B Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 5591991 is a CNMG433UP turning insert in the KCM25B grade, designed for indexable tooling applications in CNC turning centers and lathes. Manufactured from solid carbide with a multilayer CVD coating — TiCN, Al2O3, and TiOCN — this insert delivers a balance of high toughness and moderate wear resistance suited for steel and stainless steel machining. The 80-degree diamond (rhombic) insert geometry with a negative rake angle and honed cutting edge style promotes stability during roughing and medium machining passes. With four usable cutting edges per insert, it offers extended tooling value per piece. Licensed machinists and CNC operators working in precision metalworking and job shop environments will find this insert compatible with standard KENLOC clamp-and-pin toolholders.\u003c\/p\u003e\n\u003cp\u003eThis insert is intended for turning, facing, and boring operations on primary workpiece materials including steel, stainless steel, superalloys, and titanium. The UP chip breaker geometry is optimized for roughing and medium machining, making it a practical choice for interrupted cuts and variable stock conditions. The neutral hand orientation means it can be used in both right- and left-hand toolholder configurations where the insert shape is compatible. Shops processing P- and M-category materials per ISO workpiece classification will find this insert well matched to those cutting conditions.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide substrate with multilayer CVD coating: TiCN, Al2O3, and TiOCN for high toughness in steel and stainless steel\u003c\/li\u003e\n  \u003cli\u003e80-degree diamond (rhombic) insert shape with negative rake angle for stable, rigid cutting\u003c\/li\u003e\n  \u003cli\u003eUP chip breaker geometry rated for roughing and medium machining operations\u003c\/li\u003e\n  \u003cli\u003eFour cutting edges per insert for maximum index utilization\u003c\/li\u003e\n  \u003cli\u003eHoned cutting edge style reduces micro-chipping at entry and exit\u003c\/li\u003e\n  \u003cli\u003eNeutral hand orientation compatible with standard clamp and pin KENLOC toolholders\u003c\/li\u003e\n  \u003cli\u003eConforms to ANSI insert code CNMG433 and ISO insert code CNMG120412\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with KENLOC-series indexable toolholders that accept CNMG-style inserts with clamp and pin holding methods. Compatible with ANSI designation CNMG433 and ISO designation CNMG120412 toolholder pockets. Suitable for turning, facing, and boring applications on steel, stainless steel, superalloys, and titanium workpiece materials.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified CNC machinist or toolroom technician. Ensure the machine spindle is fully stopped and locked out before indexing or replacing inserts. Seat the insert fully in the toolholder pocket before engaging the clamp or pin, and verify the insert is flush with no rocking before taking a cut. Always verify correct toolholder pocket geometry matches CNMG433 or CNMG120412 specifications before installation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eANSI Insert Code\u003c\/strong\u003e: CNMG433\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO Insert Code\u003c\/strong\u003e: CNMG120412\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIndustry Standard Number\u003c\/strong\u003e: CNMG433UP\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: KCM25B\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, TiOCN (Multilayer CVD)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: C - Diamond (Rhombic) 80 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 80 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: UP (Roughing and Medium Machining)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRake\u003c\/strong\u003e: Negative\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRake Angle\u003c\/strong\u003e: 15 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Edge Style\u003c\/strong\u003e: Honed\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 0 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSide Clearance\u003c\/strong\u003e: Negative\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.5 inches (1\/2 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 12.9 mm (0.5077 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 0.1875 inches (3\/16 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0469 inches (3\/64 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.2031 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 0.1691 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 4\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\u003eSeries\u003c\/strong\u003e: KENLOC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Materials\u003c\/strong\u003e: Steel, Stainless Steel, Superalloys, Titanium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO Workpiece Material Code\u003c\/strong\u003e: P, M\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: MTCVD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMulti-Use Application\u003c\/strong\u003e: Turning, Facing, Boring\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI, ISO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.2205 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: KENNAMETAL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5591991\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51728363684146,"sku":"5591991","price":183.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/2cb66ddbbe002b4f971ba33909815f18.jpg?v=1788690667","url":"https:\/\/voomisupply.com\/products\/kennametal-5591991-turning-insert-cnmg433up-kcm25b-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}