{"product_id":"hertel-750321-square-end-mill-7-16-in-4-flute-solid-carbide","title":"Hertel 750321 Square End Mill 7\/16 in 4 Flute Solid Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 750321 is a solid carbide square end mill designed for precision milling operations in metal, composites, and engineered materials. With a 7\/16 inch (0.4375 inch) cutting diameter and a 3 inch length of cut, it handles slotting, profiling, and peripheral milling in a single setup. The four-flute, spiral configuration with a 30-degree helix angle promotes efficient chip evacuation and smooth surface finishes. The uncoated solid carbide construction delivers rigidity and edge retention suited to demanding shop environments. Licensed machinists and CNC programmers are the primary users of this tool.\u003c\/p\u003e\u003cp\u003eThis end mill is well suited for use in vertical and horizontal machining centers as well as manual knee mills. The 6 inch overall length and 7\/16 inch shank diameter make it a strong fit for applications requiring extended reach without sacrificing tool stiffness. The centercutting geometry allows direct plunge entry, adding flexibility in complex contouring and pocket-milling operations. It is intended for right-hand spindle rotation with right-hand flutes, which is the standard configuration for most CNC and conventional milling equipment.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide construction for rigidity and long edge life\u003c\/li\u003e\n\u003cli\u003e4-flute spiral design with 30-degree helix angle for efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eCentercutting geometry allows direct plunge milling\u003c\/li\u003e\n\u003cli\u003eRight-hand cut and right-hand flute direction for standard spindle use\u003c\/li\u003e\n\u003cli\u003eUncoated finish — suitable for re-sharpening or use with compatible cutting fluids\u003c\/li\u003e\n\u003cli\u003e7\/16 inch shank matches standard collet and end mill holder sizes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a direct-fit replacement for standard 7\/16 inch shank end mill holders, ER collets, and Weldon-style holders used in CNC machining centers and conventional milling machines.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist or CNC operator. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Secure the shank with the appropriate collet or end mill holder torqued per the toolholder manufacturer specification. Verify runout with a dial indicator before beginning a cut, particularly on tight-tolerance operations.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 7\/16 inch (0.4375 inch)\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: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 3 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 7\/16 inch (0.4375 inch)\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\u003eVariable Helix\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChipbreaker\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.0203 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: 750321\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51728312828210,"sku":"750321","price":139.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/8de4694c177abdb9000a5a5ed675e17c.jpg?v=1788690407","url":"https:\/\/voomisupply.com\/products\/hertel-750321-square-end-mill-7-16-in-4-flute-solid-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}