{"product_id":"kennametal-6525691-milling-insert-kcpm40-solid-carbide","title":"Kennametal 6525691 Milling Insert KCPM40 Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 6525691 is a solid carbide milling insert in the LNGQ series, engineered for high-performance metal removal in demanding machining applications. Manufactured to ANSI and ISO standards under catalog number LNGQ120604ERGEKT4, this insert features a TiAlN and AlCrN PVD coating applied via physical vapor deposition for improved wear resistance and heat stability. The rectangular insert profile measures 0.5316 inches wide and 0.25 inches thick, with a 1\/64-inch corner radius and four usable cutting edges on a single-sided, right-hand configuration. A positive rake geometry and honed cutting edge style reduce cutting forces on the workpiece. Licensed machinists and CNC tooling technicians are the primary installers of this insert.\u003c\/p\u003e\n\u003cp\u003eThis insert is designed for milling steel, stainless steel, superalloys, and titanium workpieces, making it appropriate for aerospace, energy, and general precision machining operations. It is compatible with the Mill 4-12 cutter series and is held in place via screw-on mounting. The LNGQ insert style and size code 120604 are suited for moderate to high cutting speeds where PVD-coated carbide grades outperform uncoated or CVD alternatives. The GE chip breaker geometry supports chip control across a range of feed rates typical in roughing and semi-finishing passes on difficult-to-machine alloys.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide construction with TiAlN and AlCrN PVD dual coating for thermal and abrasion resistance\u003c\/li\u003e\n  \u003cli\u003eFour cutting edges per insert on a single-sided, right-hand body for extended tool life per unit\u003c\/li\u003e\n  \u003cli\u003ePositive rake and honed edge preparation reduce cutting forces on stainless steel and superalloys\u003c\/li\u003e\n  \u003cli\u003eGE chip breaker geometry promotes reliable chip evacuation in continuous and interrupted cuts\u003c\/li\u003e\n  \u003cli\u003eMeets ANSI and ISO standards; ANSI\/ISO code LNGQ120604ERGEKT4\u003c\/li\u003e\n  \u003cli\u003eCompatible with the Mill 4-12 cutter series; screw-on insert holding method for secure seating\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with the Kennametal Mill 4-12 cutter series. Insert size code 120604, LNGQ insert style, ANSI and ISO designation LNGQ120604ERGEKT4. Primary workpiece material codes P (Steel), M (Stainless Steel), and S (Superalloys and Titanium).\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a qualified CNC machinist or tooling technician. Before changing inserts, ensure the machine spindle is fully stopped and locked out per your facility lockout\/tagout procedure. Seat the insert flush against the pocket walls before tightening the clamping screw to prevent micro-movement during cutting. Inspect the insert pocket for chips or debris before seating a new insert, as contamination can cause premature edge failure or dimensional deviation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: LNGQ\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: KCPM40\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Shape\u003c\/strong\u003e: Rectangle\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: TiAlN and AlCrN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\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 Hand\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRake\u003c\/strong\u003e: Positive\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutting Edge Style\u003c\/strong\u003e: Honed\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChip Breaker\u003c\/strong\u003e: GE\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\u003eWidth\u003c\/strong\u003e: 0.5316 inches (13.50 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 0.5316 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.1929 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eRelief Angle\u003c\/strong\u003e: 0 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncluded Angle\u003c\/strong\u003e: 90 degrees\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Size Code\u003c\/strong\u003e: 120604\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eANSI\/ISO Code\u003c\/strong\u003e: LNGQ120604ERGEKT4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCutter Series Compatibility\u003c\/strong\u003e: Mill 4-12\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\u003eSingle or Double Sided\u003c\/strong\u003e: Single\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: 0.091 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: 6525691\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51741794894130,"sku":"6525691","price":297.25,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f5ba01f3afdbba0c1caa522b3e6e0ca9_e87d3398-c5c4-4eb6-ad47-11cd53b2ba56.jpg?v=1788833509","url":"https:\/\/voomisupply.com\/products\/kennametal-6525691-milling-insert-kcpm40-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}