{"product_id":"kennametal-1161191-tnms331-k68-carbide-turning-insert","title":"Kennametal 1161191 TNMS331 K68 Carbide Turning Insert","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 1161191 is a solid carbide, uncoated turning insert in the KENLOC series, conforming to ANSI insert code TNMS331 and ISO insert code TNMS160404. This triangular (60-degree included angle) insert features a 3\/8-inch inscribed circle, a 1\/64-inch corner radius, and a negative rake and side clearance geometry. With six cutting edges and a honed cutting edge style, it is designed for turning, facing, and boring operations. The K68 grade delivers high wear resistance with moderate toughness, making it well suited for machining stainless steel, cast iron, aluminum, and non-ferrous materials. Licensed machinists and CNC turning specialists are the primary installers of this insert.\u003c\/p\u003e\n\u003cp\u003eThe 1161191 insert is used in medium machining chip breaker applications across a range of lathe and turning center setups. It supports both ANSI and ISO toolholding systems and is compatible with clamp and pin insert holding methods. Primary workpiece material codes are P, M, K, N, and S, covering stainless steel, cast iron, aluminum and non-ferrous metals, and superalloys and titanium. Maximum depth of cut is 1.25 mm (0.0492 inches). This insert fits residential and industrial machine shops as well as production turning environments where consistent wear resistance and edge life are priorities.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction, uncoated (bright finish) for direct application without coating variables\u003c\/li\u003e\n  \u003cli\u003eSix cutting edges per insert for extended tool life per unit\u003c\/li\u003e\n  \u003cli\u003eK68 grade: high to moderate wear resistance with toughness for stainless steel, cast iron, and non-ferrous applications\u003c\/li\u003e\n  \u003cli\u003eNegative rake and negative side clearance geometry for stable, rigid cutting action\u003c\/li\u003e\n  \u003cli\u003eHoned cutting edge style reduces microchipping on entry\u003c\/li\u003e\n  \u003cli\u003eSupports turning, facing, and boring in a single insert geometry\u003c\/li\u003e\n  \u003cli\u003eConforms to both ANSI and ISO standards for broad toolholder compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use in KENLOC series toolholders accepting TNMS-style inserts with clamp and pin holding methods. Compatible with toolholders conforming to ANSI insert code TNMS331 and ISO insert code TNMS160404. Suitable for machining stainless steel (M), cast iron (K), aluminum and non-ferrous metals (N), and superalloys and titanium (S) workpiece materials per the material grade codes stated in the product specifications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a qualified machinist or CNC setup technician. Power down and lock out the machine spindle before seating or indexing the insert. Secure the insert using the clamp and pin method specified for the KENLOC toolholder; do not overtighten the clamp screw beyond the toolholder manufacturer specification. Inspect the insert pocket and seating surfaces for chips or debris before installing a new edge to ensure proper seating and runout control.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eANSI Insert Code\u003c\/strong\u003e: TNMS331\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO Insert Code\u003c\/strong\u003e: TNMS160404\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: T - Triangle, 60-degree included angle\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: K68\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Uncoated (Bright)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 3\/8 inches (0.3750 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Length\u003c\/strong\u003e: 16.50 mm (0.6496 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Thickness\u003c\/strong\u003e: 3\/16 inches (0.1875 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 1\/64 inches (0.0156 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.1500 inches (3.81 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaximum Depth of Cut\u003c\/strong\u003e: 1.25 mm (0.0492 inches)\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: 20 degrees\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\u003eClearance Code\u003c\/strong\u003e: N\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTolerance Code\u003c\/strong\u003e: M\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Edge Style\u003c\/strong\u003e: Honed\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Cutting Edges\u003c\/strong\u003e: 6\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: Common (Medium Machining)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Clamp; Pin\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: KENLOC\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\u003ePrimary Workpiece Material Codes\u003c\/strong\u003e: P; M; K; N; S\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ANSI; ISO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.0146 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: 1161191\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51737076465970,"sku":"1161191","price":141.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/bfe01bd358a25f178eb8c79ee4def909.jpg?v=1788783955","url":"https:\/\/voomisupply.com\/products\/kennametal-1161191-tnms331-k68-carbide-turning-insert","provider":"Voomi Supply","version":"1.0","type":"link"}