{"product_id":"hertel-ef99921327-square-end-mill-1-2-in-4-flute-hss-ticn","title":"Hertel EF99921327 Square End Mill 1\/2 in 4 Flute Hss Ticn","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL EF99921327 is a double-end square end mill designed for precision milling operations in metal and alloy workpieces. Manufactured from high speed steel (HSS) with a titanium carbonitride (TiCN) coating, this tool delivers extended wear resistance and improved surface finishes compared to uncoated HSS. It features a 1\/2 inch mill diameter, a 1 inch length of cut, and four spiral flutes with a 30-degree helix angle. The double-end configuration doubles usable tool life before replacement. This end mill is a standard choice for machinists and toolmakers performing slotting, profiling, and peripheral milling on manual and CNC machine tools.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for shops handling general-purpose milling on carbon steel, alloy steel, stainless steel, cast iron, and non-ferrous materials. The TiCN coating reduces friction and resists built-up edge, making it appropriate for moderate-speed cutting applications. The right-hand cut and right-hand flute direction are standard for conventional milling setups. At 4.5 inches overall length with a 1\/2 inch shank diameter, it fits standard end mill holders, collets, and milling chucks used on knee mills and CNC machining centers.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eDouble-end design provides two usable cutting ends, extending tool life\u003c\/li\u003e\n\u003cli\u003eTiCN coating improves wear resistance and reduces friction versus uncoated HSS\u003c\/li\u003e\n\u003cli\u003e4 spiral flutes with 30-degree helix angle for efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eCenter-cutting capable, allowing plunge entry into the workpiece\u003c\/li\u003e\n\u003cli\u003eRight-hand cut and right-hand flute direction for standard milling setups\u003c\/li\u003e\n\u003cli\u003e1\/2 inch shank diameter compatible with common end mill holders and collets\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-use end mill for standard 1\/2 inch end mill holders, ER collet chucks, and milling chucks used on manual knee mills and CNC vertical machining centers.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or toolroom technician. Ensure the machine spindle is fully stopped and locked out before installing or removing the end mill from its holder. Verify that the collet or end mill holder is clean and free of chips or debris before seating the shank. Follow machine tool manufacturer torque recommendations for drawbar and collet nut tightening, and confirm tool runout with a dial indicator before beginning production cuts.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.5000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1.0000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4.5000 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.5000 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: 30 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiCN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Type\u003c\/strong\u003e: Double End\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCenter Cutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.5 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Height\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Width\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Length\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: HERTEL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: EF99921327\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51738558005554,"sku":"EF99921327","price":67.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/6b692970dccf06f56e91150c109b24cb.jpg?v=1788800978","url":"https:\/\/voomisupply.com\/products\/hertel-ef99921327-square-end-mill-1-2-in-4-flute-hss-ticn","provider":"Voomi Supply","version":"1.0","type":"link"}