{"product_id":"hertel-e299914048-square-end-mill-15-16-in-4-flute-cobalt","title":"Hertel E299914048 Square End Mill 15\/16 in 4 Flute Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL E299914048 is a cobalt square end mill designed for milling operations in ferrous and hard materials where high-speed steel tooling lacks sufficient heat resistance. Built from M42 cobalt high-speed steel, this end mill runs uncoated and delivers consistent performance in face milling, slotting, and profiling applications. It carries a 15\/16-inch (0.9375-inch) cutting diameter with a 1-7\/8-inch length of cut, a 7\/8-inch shank diameter, and a 4-1\/8-inch overall length. The 4-flute, 30-degree right-hand spiral geometry supports efficient chip evacuation and stable cutting action. Licensed machinists and tool-and-die professionals are the primary installers and operators of this tooling.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for general-purpose machining on vertical and horizontal milling machines, CNC machining centers, and manual knee mills. Its regular-length configuration fits standard tool holders used in job shop and production environments. The centercutting design allows plunge cutting in addition to conventional peripheral and slot milling, expanding its range of viable operations without a dedicated drilling operation first. It is well matched to medium-to-heavy material removal in steel, stainless steel, and cast iron where elevated cutting temperatures are anticipated.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM42 cobalt high-speed steel construction for improved heat and wear resistance over standard M2 HSS\u003c\/li\u003e\n\u003cli\u003e4-flute spiral geometry with 30-degree helix angle for balanced chip load and surface finish\u003c\/li\u003e\n\u003cli\u003eCentercutting capability allows direct plunge entry without a pilot hole\u003c\/li\u003e\n\u003cli\u003eRight-hand cut and right-hand flute orientation for standard spindle operation\u003c\/li\u003e\n\u003cli\u003eUncoated finish suitable for use with cutting fluids in ferrous machining\u003c\/li\u003e\n\u003cli\u003eRegular length (LOC range 1.5 to 2.0 inches) provides rigidity for slotting and profiling passes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct-use cobalt square end mill compatible with standard 7\/8-inch straight-shank tool holders and collet systems on vertical mills and CNC machining centers.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation and operation of this tooling should be performed by a qualified machinist familiar with end mill selection, speeds, and feeds for cobalt HSS. Ensure the machine spindle is fully stopped and locked out before changing tooling. Verify tool holder runout is within acceptable limits before engaging a cut, as excessive runout accelerates wear and can cause premature breakage. Always apply appropriate cutting fluid when machining ferrous materials to manage heat buildup at the cutting edge.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 15\/16 inch (0.9375 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1-7\/8 inches (1.875 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 7\/8 inch (0.875 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 4-1\/8 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: Cobalt (M42 HSS)\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\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\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: E299914048\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51737241125170,"sku":"E299914048","price":96.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/2ef773b1ea8328f8b983975dfe1d06b4.jpg?v=1788785977","url":"https:\/\/voomisupply.com\/products\/hertel-e299914048-square-end-mill-15-16-in-4-flute-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}