{"product_id":"hertel-e7039048-square-end-mill-3-4-in-4-flute-cobalt","title":"Hertel E7039048 Square End Mill 3\/4 in 4 Flute Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL E7039048 is a 4-flute cobalt square end mill designed for metal removal in milling operations on machining centers and manual mills. Built from M42 cobalt high-speed steel and finished with a TiCN (Titanium Carbonitride) coating, this tool handles tough ferrous and non-ferrous materials with improved wear resistance over standard HSS tooling. It features a 0.75-inch cutting diameter, a 1.625-inch length of cut, and a 0.75-inch straight shank. The 30-degree helix angle and spiral flute geometry promote efficient chip evacuation. Licensed machinists and CNC programmers working in job shops, tool rooms, and production environments are the primary users.\u003c\/p\u003e\u003cp\u003eThis end mill is suited for side milling, slotting, and profiling operations in steel, stainless steel, cast iron, and similar materials. The centercutting design allows direct plunge entry into the workpiece without a pre-drilled hole, adding flexibility in programming and setup. With a regular-length classification and 3.875-inch overall length, it fits standard tool holders and collet chucks used in everyday shop operations. It is well matched to applications where TiCN coating provides the edge life advantage needed over uncoated tooling.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM42 cobalt high-speed steel construction for elevated heat and wear resistance\u003c\/li\u003e\n\u003cli\u003eTiCN finish extends tool life compared to uncoated HSS end mills\u003c\/li\u003e\n\u003cli\u003e4-flute, spiral flute geometry for stable cuts and efficient chip removal\u003c\/li\u003e\n\u003cli\u003e30-degree helix angle balances cutting forces across the flute length\u003c\/li\u003e\n\u003cli\u003eCentercutting capability allows direct plunge milling without pre-boring\u003c\/li\u003e\n\u003cli\u003eRight-hand cut and right-hand flute configuration for standard spindle direction\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard-shank replacement end mill for use in 3\/4-inch collet chucks, end mill holders, and Weldon-style tool holders on vertical machining centers and manual knee mills accepting a 0.75-inch shank.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified machinist following shop safety procedures. Power down and lock out the spindle before installing or removing the tool. Seat the shank fully in the holder and torque set screws or collet nuts to the tool holder manufacturer specifications. Inspect the cutting edges and coating for chips or wear before each use, and confirm runout with a dial indicator when tight tolerances are required.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.75 inches (3\/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\u003eLength of Cut\u003c\/strong\u003e: 1.625 inches (1-5\/8 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.875 inches (3-7\/8 inch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.75 inches (3\/4 inch)\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\u003eMaterial Grade\u003c\/strong\u003e: M42\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: TiCN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Type\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 30 degrees\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\u003eLength Type\u003c\/strong\u003e: Regular\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.35 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: E7039048\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51728201777458,"sku":"E7039048","price":98.62,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/a8f5f8fa34b44b911068c82ae4f0fa70.jpg?v=1788689440","url":"https:\/\/voomisupply.com\/products\/hertel-e7039048-square-end-mill-3-4-in-4-flute-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}