{"product_id":"kennametal-4169809-square-end-mill-3-8-inch-4-flute-altin-carbide","title":"Kennametal 4169809 Square End Mill 3\/8 Inch 4 Flute Altin Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 4169809 is a solid carbide square end mill engineered for precision milling in demanding metalworking applications. With a 0.375-inch cutting diameter, a 31\/64-inch (0.4844-inch) length of cut, and a 4-flute spiral design, this stub-length end mill delivers efficient chip evacuation and stable cutting performance. The AlTiN coating provides high-temperature oxidation resistance, making it well suited for dry or near-dry cutting of hardened steels, stainless steels, and high-temperature alloys. The 38-degree helix angle promotes smooth cutting action and reduced chatter. This tool is part of the KENNAMETAL UEDE series and is intended for use by machinists and CNC tool room operators working on tight-tolerance components.\u003c\/p\u003e\u003cp\u003eThis end mill is designed for use in CNC machining centers and manual mills where a short, rigid tool is preferred for stability in peripheral and slot milling operations. Its centercutting geometry allows it to plunge directly into the workpiece, adding versatility for ramp entry and pocket milling. The variable index design helps minimize vibration during aggressive cuts. Typical applications include finishing passes on ferrous metals, hardened tool steels, and exotic alloys in aerospace, die-and-mold, and precision parts manufacturing environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eAlTiN coating for high-temperature wear resistance in ferrous and high-hardness materials\u003c\/li\u003e\n\u003cli\u003e38-degree helix angle for smooth cutting action and reduced cutting forces\u003c\/li\u003e\n\u003cli\u003eCentercutting geometry allows direct plunge entry and ramp milling\u003c\/li\u003e\n\u003cli\u003eVariable index flute spacing reduces harmonic vibration during cuts\u003c\/li\u003e\n\u003cli\u003eStub-length (31\/64-inch LOC) construction maximizes rigidity and minimizes deflection\u003c\/li\u003e\n\u003cli\u003eRight-hand cut and right-hand flute in KENNAMETAL KC643M carbide grade\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style solid carbide square end mill compatible with standard 3\/8-inch collet chucks, end mill holders, and shrink-fit tooling systems used in CNC machining centers and manual milling machines.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist. Secure the shank fully into a clean, properly sized collet or end mill holder and torque to the toolholder manufacturer specification. Inspect the collet and bore for wear or contamination before installation, as runout at the cutting edge directly affects tool life and surface finish. Confirm spindle direction is set to right-hand rotation before engaging the cut.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.375 inches (3\/8 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter Tolerance\u003c\/strong\u003e: +0.000 \/ -0.002 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.4844 inches (31\/64 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.375 inches (3\/8 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter Tolerance\u003c\/strong\u003e: +0.00000 \/ -0.00035 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length (OAL)\u003c\/strong\u003e: 2 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 38 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Single End\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Stub\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentercutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChipbreaker\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Helix\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Index\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Reach\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: KC643M\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: AlTiN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: UEDE\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.011 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 4169809\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51750821298482,"sku":"4169809","price":118.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/de9f1e2531a104dffbbaf1ff551eb4ec_c1bfb184-2103-4c22-a6e7-5fbcf5e395fc.jpg?v=1788919991","url":"https:\/\/voomisupply.com\/products\/kennametal-4169809-square-end-mill-3-8-inch-4-flute-altin-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}