{"product_id":"hertel-e1039008-square-end-mill-0-125in-4-flute-hss","title":"Hertel E1039008 Square End Mill 0.125in 4 Flute Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL E1039008 is a 4-flute square end mill designed for general-purpose milling in a wide range of metalworking applications. Built from M7 high speed steel and left uncoated, it runs at conventional speeds and offers reliable performance in ferrous and non-ferrous materials. The 0.125-inch cutting diameter pairs with a 0.375-inch shank, making it compatible with standard collet and end mill holders. A 30-degree helix angle promotes smooth chip evacuation, and the spiral flute geometry reduces cutting forces along the tool length. The 0.375-inch length of cut handles light-to-moderate depth passes typical of finish and semi-finish operations.\u003c\/p\u003e\n\u003cp\u003eThis end mill fits residential shop, production, and maintenance machining environments where tight tolerances in small-diameter cuts are required. The centercutting design allows direct plunge entry into a workpiece, expanding its use to slotting, profiling, and pocket milling without a pre-drilled starter hole. Right-hand cut and right-hand flute orientation match the standard spindle rotation of vertical machining centers and manual knee mills. The regular-length body suits setups where reach is not a limiting factor and rigidity is preferred.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM7 high speed steel construction for durability in general metalworking\u003c\/li\u003e\n  \u003cli\u003e4 spiral flutes with 30-degree helix angle for efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003eCentercutting design allows direct plunge milling without a pilot hole\u003c\/li\u003e\n  \u003cli\u003eUncoated finish suitable for use with standard cutting fluids\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut and right-hand flute for standard spindle compatibility\u003c\/li\u003e\n  \u003cli\u003eRegular length body maximizes rigidity in short-reach setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or direct-use tooling for standard 3\/8-inch collet chucks and end mill holders used in vertical machining centers, CNC mills, and manual knee mills accepting a 0.375-inch shank diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist or tooling technician familiar with cutting tool setup. Secure the shank fully within the collet or tool holder to the recommended engagement depth before tightening, and verify runout with a dial indicator before beginning a cut. Power down and lock out the machine spindle before changing or inspecting tooling. Do not exceed the tool manufacturers recommended speeds and feeds for M7 high speed steel in the material being cut.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.125 inches (1\/8 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: High Speed Steel (M7)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.375 inches (3\/8 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.375 inches (3\/8 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.3125 inches (2-5\/16 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 30 degrees\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\u003eCentercutting\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.06 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: HERTEL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: E1039008\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51730865029426,"sku":"E1039008","price":27.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/443f81b7d257938dc62e65538dc9413a.jpg?v=1788724064","url":"https:\/\/voomisupply.com\/products\/hertel-e1039008-square-end-mill-0-125in-4-flute-hss","provider":"Voomi Supply","version":"1.0","type":"link"}