{"product_id":"hertel-e8053016-square-end-mill-1-4-in-4-flute-hss-tin","title":"Hertel E8053016 Square End Mill 1\/4 in 4 Flute Hss Tin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL E8053016 is a double-end square end mill designed for general-purpose milling operations in metal, alloy, and ferrous materials. Manufactured from M7 high speed steel and finished with a titanium nitride (TiN) coating, it delivers extended tool life and reduced friction at the cutting edge. The four-flute spiral design with a 30-degree helix angle promotes efficient chip evacuation and smooth surface finishes. The centercutting geometry allows direct plunge entry without pre-drilled pilot holes. Licensed machinists and CNC operators install this tool in vertical milling machines, knee mills, and machining centers across production and job-shop environments.\u003c\/p\u003e\n\u003cp\u003eThis end mill is suited for face milling, slotting, profiling, and contour operations on steel, cast iron, and similar ferrous workpiece materials. The 0.25-inch cutting diameter and 0.625-inch length of cut make it appropriate for light-to-medium stock removal in close-tolerance features. The double-end configuration doubles usable tool life before discard. The 0.375-inch shank diameter fits standard ER and R8 collet systems common in manual and CNC milling 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 ferrous materials\u003c\/li\u003e\n  \u003cli\u003eTiN coating reduces friction and improves wear resistance at the cutting edge\u003c\/li\u003e\n  \u003cli\u003e30-degree helix spiral flute promotes controlled chip flow and smooth surface finish\u003c\/li\u003e\n  \u003cli\u003eCentercutting geometry allows direct plunge milling without a pilot hole\u003c\/li\u003e\n  \u003cli\u003eDouble-end design provides two usable cutting ends per tool\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut and right-hand flute configuration for standard milling spindle rotation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or standard tooling selection for milling machines accepting a 0.375-inch shank diameter in ER, R8, or equivalent collet systems.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by a qualified machinist or CNC operator. Disengage spindle power and confirm the machine is in a locked-out, zero-energy state before changing tooling. Seat the shank fully into the collet and torque the collet nut to the collet manufacturer specification. Verify runout with a dial indicator before beginning the cut, and confirm spindle speed and feed rate are appropriate for the workpiece material and depth of cut.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.25 inches (1\/4 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.375 inches (3\/8 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.625 inches (5\/8 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.375 inches (3-3\/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\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, Grade M7\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\/Coating\u003c\/strong\u003e: Titanium Nitride (TiN)\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\u003eDouble End\u003c\/strong\u003e: Yes\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.05 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: E8053016\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51752308801842,"sku":"E8053016","price":38.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c43efed7a50c65039bb535117ad587b2.jpg?v=1788927357","url":"https:\/\/voomisupply.com\/products\/hertel-e8053016-square-end-mill-1-4-in-4-flute-hss-tin","provider":"Voomi Supply","version":"1.0","type":"link"}