{"product_id":"hertel-e1040012-square-end-mill-3-16-in-4-flute-hss","title":"Hertel E1040012 Square End Mill 3\/16 in 4 Flute Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL E1040012 is a 4-flute, single-end square end mill ground from M7 high speed steel. It carries a 3\/16 inch cutting diameter with a 1-1\/4 inch length of cut and a 3-1\/16 inch overall length, making it a compact, general-purpose tool suited for slotting, profiling, and peripheral milling in a wide range of workpiece materials. The 30-degree right-hand spiral flute geometry promotes chip evacuation during conventional and climb milling passes. The bright uncoated finish allows for easy wear inspection at the cutting edge. This tool is installed by machinists and tool-and-die technicians in manual mills, CNC machining centers, and knee mills.\u003c\/p\u003e\u003cp\u003eThis end mill is designed for general milling applications in ferrous and non-ferrous materials including mild steels, aluminum, brass, and plastics. The 3\/8 inch shank diameter fits standard ER collets, side-lock holders, and Weldon-style tool holders commonly found in job shops and production environments. The centercutting design allows for plunge entry into workpieces without a pre-drilled pilot hole, adding flexibility during profiling operations. No chipbreaker geometry is present, keeping this tool well-suited for continuous-cut finishing and semi-finishing passes.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e4-flute spiral configuration with 30-degree right-hand helix for efficient chip removal\u003c\/li\u003e\n\u003cli\u003eCentercutting geometry enables direct plunge milling without a pre-drilled hole\u003c\/li\u003e\n\u003cli\u003eM7 high speed steel construction provides toughness in interrupted cuts\u003c\/li\u003e\n\u003cli\u003eBright uncoated finish allows visual wear monitoring at the cutting edges\u003c\/li\u003e\n\u003cli\u003eSingle-end design with 3\/8 inch shank for broad holder compatibility\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting direction for standard spindle rotation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or standard tooling addition for use in manual knee mills, CNC vertical machining centers, and any machine fitted with a tool holder accepting a 3\/8 inch shank.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis end mill is installed by machinists using standard collet chucks or end mill holders rated for the 3\/8 inch shank diameter. Ensure the tool holder is fully cleaned and free of chips before seating the shank, and tighten to the holder manufacturer's specified torque range. Power down and lock out the spindle drive before changing tooling. Verify runout with a dial indicator after installation, as excessive runout will accelerate cutting edge wear and degrade surface finish quality.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 3\/16 inches (0.1875 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1-1\/4 inches (1.2500 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3-1\/16 inches (3.0625 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/8 inches (0.3750 inches)\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\u003eMaterial Grade\u003c\/strong\u003e: M7\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\u003eSingle End\u003c\/strong\u003e: Yes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Weight\u003c\/strong\u003e: 0.5 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: HERTEL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: E1040012\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51752539750706,"sku":"E1040012","price":35.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/588952badac5d1704a6e1f77be54fb6d.jpg?v=1788929006","url":"https:\/\/voomisupply.com\/products\/hertel-e1040012-square-end-mill-3-16-in-4-flute-hss","provider":"Voomi Supply","version":"1.0","type":"link"}