{"product_id":"hertel-gg021024-ball-end-mill-0-375-in-4-flute-hss","title":"Hertel GG021024 Ball End Mill 0.375 in 4 Flute Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL GG021024 is a single-end ball end mill designed for contour milling, slotting, and profiling operations on ferrous and non-ferrous materials. Manufactured from M7 high speed steel with a bright uncoated finish, this tool delivers reliable performance in general-purpose machining applications. The 0.375-inch cutting diameter pairs with a 1.5-inch length of cut and a 30-degree helix angle across four spiral flutes, providing efficient chip evacuation and smooth surface finishes. Machinists and tool-and-die professionals install this end mill in standard CNC mills, manual knee mills, and machining centers requiring a 3\/8-inch shank.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for job shops, tool rooms, and production environments handling light to medium-duty milling tasks. Typical applications include 3D contouring, radius slotting, and pocket milling in steel, cast iron, aluminum, and similar materials. The right-hand cutting and right-hand flute direction make it compatible with conventional spindle-forward setups. Its single-end configuration keeps the tool length manageable in tight setups while the 3.25-inch overall length provides adequate reach for most standard workholding arrangements.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM7 high speed steel construction for toughness and wear resistance in general-purpose machining\u003c\/li\u003e\n\u003cli\u003eFour spiral flutes with 30-degree helix angle for efficient chip evacuation and reduced cutting forces\u003c\/li\u003e\n\u003cli\u003eBright uncoated finish suitable for use with or without cutting fluid\u003c\/li\u003e\n\u003cli\u003eRight-hand cut, right-hand flute direction for standard spindle-forward operation\u003c\/li\u003e\n\u003cli\u003eSingle-end design with 3\/8-inch shank diameter for direct collet or end mill holder mounting\u003c\/li\u003e\n\u003cli\u003eBall nose geometry enables contour milling and 3D profiling passes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard 3\/8-inch shank ball end mill compatible with collet chucks, end mill holders, and milling machine spindles accepting 3\/8-inch shanks in CNC and manual milling setups.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified machinists or CNC setup technicians. Power down and de-energize the machine spindle completely before inserting or removing tooling. Secure the shank in a properly sized collet or end mill holder and torque the retention mechanism per the toolholder manufacturer guidelines. Inspect the cutting edges and shank for nicks or runout before beginning a cut, and confirm spindle speed and feed rate are appropriate for the workpiece material before engaging the tool.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.375 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.375 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\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 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\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle or Double End\u003c\/strong\u003e: Single\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Reach\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Helix\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Index\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.504 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 27112803\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: GG021024\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51727330345266,"sku":"GG021024","price":71.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/3966a40eb84641347954b64ee2b9f16e.jpg?v=1788676389","url":"https:\/\/voomisupply.com\/products\/hertel-gg021024-ball-end-mill-0-375-in-4-flute-hss","provider":"Voomi Supply","version":"1.0","type":"link"}