{"product_id":"hertel-e8031909-square-end-mill-3-4-in-4-flute-hss-tin","title":"Hertel E8031909 Square End Mill 3\/4 in 4 Flute Hss Tin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL E8031909 is a 4-flute square end mill designed for general-purpose milling operations in a wide range of ferrous and non-ferrous materials. It features a 3\/4-inch cutting diameter, a 1-5\/8-inch length of cut, and a 5\/8-inch shank diameter, giving it a rigid, well-proportioned geometry for slotting, profiling, and peripheral milling. The tool is manufactured from M7 high speed steel and carries a titanium nitride (TiN) finish that increases surface hardness and extends tool life compared to uncoated HSS tooling. The 30-degree right-hand spiral flute design promotes efficient chip evacuation and smooth cutting action. Overall length is 3-3\/4 inches, placing it in the regular-length category for standard reach applications.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for machining operations on manual knee mills, CNC vertical machining centers, and bridgeport-style machines where an HSS tool is preferred over carbide. Typical applications include side milling, slotting, and light profiling cuts in mild steel, aluminum, brass, and plastics. The non-centercutting design means it is not intended for direct plunge cuts; entry should be made via ramping or pre-drilled holes. It is packaged and sold individually as a single unit.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e3\/4-inch cutting diameter with 1-5\/8-inch length of cut for regular-reach slotting and profiling\u003c\/li\u003e\n\u003cli\u003eM7 high speed steel construction provides toughness and resistance to edge chipping\u003c\/li\u003e\n\u003cli\u003eTiN coating increases surface hardness and reduces friction for extended tool life\u003c\/li\u003e\n\u003cli\u003e4-flute configuration balances chip clearance with surface finish quality\u003c\/li\u003e\n\u003cli\u003e30-degree right-hand spiral flute promotes positive chip evacuation\u003c\/li\u003e\n\u003cli\u003eNon-centercutting geometry — not intended for direct plunge entry\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard replacement or production end mill compatible with ER, R8, CAT, BT, and other common milling machine toolholders accepting a 5\/8-inch shank diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist following shop safety procedures. Ensure the machine spindle is fully powered down and locked out before loading or removing the tool from the holder. Secure the shank to the minimum recommended engagement depth specified by the toolholder manufacturer. Verify runout with a dial indicator before commencing cuts to prevent premature edge wear.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Diameter\u003c\/strong\u003e: 0.750 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1.625 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.625 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.750 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, Grade M7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Titanium Nitride (TiN)\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: No\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: 0.35 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: E8031909\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51753847554354,"sku":"E8031909","price":76.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/df534e02a1eaa0a4a192afa81b670df2.jpg?v=1788941451","url":"https:\/\/voomisupply.com\/products\/hertel-e8031909-square-end-mill-3-4-in-4-flute-hss-tin","provider":"Voomi Supply","version":"1.0","type":"link"}