{"product_id":"hertel-e4039032-square-end-mill-1-2-in-4-flute-cobalt","title":"Hertel E4039032 Square End Mill 1\/2 in 4 Flute Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe HERTEL E4039032 is a 4-flute cobalt square end mill designed for general-purpose milling operations in ferrous and non-ferrous metals. Built from M42 cobalt high-speed steel, it carries a TiN (titanium nitride) finish that extends tool life in abrasive cutting conditions. The cutter measures 0.5 inches in diameter with a 1.25-inch length of cut and a 3.25-inch overall length. The 30-degree spiral helix promotes smooth chip evacuation and reduces cutting forces. This is a centercutting tool, meaning it can plunge directly into a workpiece, giving machinists more operational flexibility in a single setup.\u003c\/p\u003e\n\u003cp\u003eThis end mill is suited for milling slots, pockets, and profiles on manual mills and CNC machining centers. The regular-length geometry fits standard toolholding setups without extended reach concerns. Right-hand cut and right-hand flute orientation makes it compatible with conventional spindle configurations found in most shop environments. Typical applications include finishing and semi-finishing passes on steel, stainless, cast iron, and similar ferrous workpiece materials where cobalt tooling outperforms standard HSS.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eM42 cobalt construction for increased heat and wear resistance over standard HSS\u003c\/li\u003e\n  \u003cli\u003eTiN coating reduces friction and extends tool life in demanding cuts\u003c\/li\u003e\n  \u003cli\u003e4-flute spiral design with 30-degree helix for efficient chip evacuation\u003c\/li\u003e\n  \u003cli\u003eCentercutting capability allows direct plunge entry into workpiece\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut, right-hand flute for standard spindle compatibility\u003c\/li\u003e\n  \u003cli\u003eRegular-length geometry for rigid, chatter-resistant performance in typical toolholding\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a direct-fit replacement or standard tooling selection for 0.5-inch collet chucks, end mill holders, and shrink-fit holders accepting a 0.5-inch shank diameter on manual or CNC milling machines.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist or toolroom technician. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Seat the 0.5-inch shank fully into the holder and torque set screws or collet nuts to the toolholder manufacturer's specification. Inspect the cutting edges and TiN coating for chips or damage before mounting; a damaged coating or chipped flute can accelerate tool failure and compromise surface finish.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.5 inches (1\/2 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 1.25 inches (1-1\/4 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.5 inches (1\/2 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.25 inches (3-1\/4 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: Cobalt (M42 HSS)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface Finish\u003c\/strong\u003e: TiN (Titanium Nitride)\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\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\u003eChipbreaker\u003c\/strong\u003e: No\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: 0.1 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: E4039032\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51731601490226,"sku":"E4039032","price":60.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/82652d2c3b6aad683a777dc764d991e2.jpg?v=1788733058","url":"https:\/\/voomisupply.com\/products\/hertel-e4039032-square-end-mill-1-2-in-4-flute-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}