{"product_id":"kennametal-1157504-milling-insert-speb120308t-kc725m-carbide","title":"Kennametal 1157504 Milling Insert SPEB120308T KC725M Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 1157504 is a solid carbide milling insert designed for high-performance material removal in demanding machining applications. Manufactured to the SPEB120308T ISO designation, this neutral-hand insert features a square shape with a 90-degree included angle and a 0.0315-inch (0.80 mm) corner radius. It is finished with a three-layer PVD coating of TiN, TiCN, and TiN, which improves wear resistance and edge life across a range of workpiece materials. At 0.125 inches thick with an inscribed circle of 0.3272 inches, this insert is engineered for precision fit and repeatable performance in screw-retained milling cutter bodies.\u003c\/p\u003e\n\u003cp\u003eThis insert is suited for milling operations on steel, stainless steel, superalloys, and titanium. It carries material grade designations of C5, C6, and C7, making it applicable across a broad hardness range in both roughing and semi-finishing passes. Typical installations include face milling, shoulder milling, and slotting on CNC machining centers in job shop and production environments. Machinists working with difficult-to-machine alloys and stainless grades will find the KC725M grade and PVD coating well matched to those materials.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction in manufacturer grade KC725M for extended tool life in tough materials\u003c\/li\u003e\n  \u003cli\u003eThree-layer PVD coating (TiN, TiCN, TiN) provides wear resistance and reduced friction\u003c\/li\u003e\n  \u003cli\u003eSquare insert shape with 90-degree included angle for versatile milling geometries\u003c\/li\u003e\n  \u003cli\u003eNeutral hand orientation compatible with standard SPEB-series cutter bodies\u003c\/li\u003e\n  \u003cli\u003e0.0315-inch corner radius (0.80 mm) balances edge strength with surface finish capability\u003c\/li\u003e\n  \u003cli\u003eScrew-held mounting for secure, repeatable seating in milling cutter pockets\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a direct-fit replacement for SPEB-series milling cutter bodies accepting SPEB120308T style inserts with a 0.2071-inch hole diameter and an insert size code of 422. Suitable for use with workpiece materials coded P (steel), M (stainless steel), and S (superalloys and titanium) per ISO classification.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by qualified machinists or tooling technicians. Power down and lock out the machine spindle before changing inserts. Use the correct torque screwdriver for the insert screw to avoid stripping the cutter body pocket thread — do not exceed cutter body manufacturer torque recommendations. Inspect the pocket seat and clamping screw for wear or debris before seating a new insert.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: SPEB120308T\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: SPEB\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Square\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 90 degrees\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: KC725M\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C5, C6, C7\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiN, TiCN, TiN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.1250 inches (1\/8 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.3272 inches (21\/64 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0315 inches (1\/32 inch, 0.80 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.2071 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 11 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Neutral\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Holding Method\u003c\/strong\u003e: Screw\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel, Stainless Steel, Superalloys and Titanium\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Size Code\u003c\/strong\u003e: 422\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.0106 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: 1157504\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51752491843890,"sku":"1157504","price":270.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9ea3728328b0716cc86a2fdfaf49522c.jpg?v=1788928581","url":"https:\/\/voomisupply.com\/products\/kennametal-1157504-milling-insert-speb120308t-kc725m-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}