{"product_id":"hertel-gg040024-square-end-mill-3-8-in-4-flute-hss","title":"Hertel GG040024 Square End Mill 3\/8 in 4 Flute Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL GG040024 is a 4-flute square end mill designed for general-purpose milling operations in a wide range of metalworking applications. Manufactured from M7 high speed steel with no coating, it features a 3\/8 inch cutting diameter, a 1-1\/2 inch length of cut, and a 3-1\/4 inch overall length. The spiral flute geometry with a 30-degree helix angle promotes efficient chip evacuation and smooth cutting action. Center-cutting capability allows for direct plunge entry into workpiece material. This tool is intended for use by machinists, toolmakers, and CNC operators working on milling machines and machining centers.\u003c\/p\u003e\n\u003cp\u003eThis end mill suits residential shop, job shop, and production environments where steel, aluminum, brass, and similar machinable materials are processed. The regular length classification and 3\/8 inch shank diameter make it compatible with standard ER and side-lock toolholders found on vertical milling machines and machining centers. Its right-hand cut, right-hand flute configuration is the standard orientation for conventional and climb milling passes on most setups.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM7 high speed steel construction for toughness in interrupted cuts and general-purpose milling\u003c\/li\u003e\n  \u003cli\u003e30-degree helix spiral flute promotes chip flow and reduces cutting heat\u003c\/li\u003e\n  \u003cli\u003eCenter-cutting design allows direct plunge milling without pre-drilling\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut and right-hand flute geometry — standard orientation for most milling setups\u003c\/li\u003e\n  \u003cli\u003eUncoated finish — suitable for regrinding and re-use cycles common in tool room environments\u003c\/li\u003e\n  \u003cli\u003eRegular length classification provides rigidity for slotting, profiling, and peripheral milling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard 3\/8 inch shank square end mill compatible with ER collet chucks, side-lock holders, and milling chucks rated for 3\/8 inch shank tooling on vertical or horizontal milling machines and machining centers.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a machinist or CNC operator. Ensure the spindle is fully stopped and locked out before loading or changing tooling. Seat the shank fully into the toolholder to the recommended engagement depth and torque the retention mechanism per the toolholder specification. Verify runout with a dial indicator after tool change before beginning a cut.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 3\/8 inch (0.3750 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\/2 inches (1.5000 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 3\/8 inch (0.3750 inches)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3-1\/4 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\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\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: 0.504 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: GG040024\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51737043992882,"sku":"GG040024","price":42.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f75554b7858b6170b54399d5274069fa.jpg?v=1788783554","url":"https:\/\/voomisupply.com\/products\/hertel-gg040024-square-end-mill-3-8-in-4-flute-hss","provider":"Voomi Supply","version":"1.0","type":"link"}