{"product_id":"hertel-84512110-roughing-end-mill-3-4-in-4-flute-cobalt","title":"Hertel 84512110 Roughing End Mill 3\/4 in 4 Flute Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL 84512110 is a single-end roughing end mill designed for aggressive material removal in milling applications. Built from M42 cobalt high-speed steel and finished with a Titanium Nitride (TiN) coating, this tool delivers extended cutting life in ferrous and hard-to-machine materials. It runs a 3\/4 inch diameter with 4 flutes in a fine-pitch configuration, a 4 inch length of cut, and a 6.25 inch overall length. The right-hand cutting and right-hand flute direction make it a standard choice for conventional CNC and manual milling setups. Licensed machinists and tool-and-die professionals are the primary users.\u003c\/p\u003e\u003cp\u003eThis roughing end mill is suited for roughing passes on steel, stainless, and other tough alloys in both job shop and production environments. The fine-pitch flute geometry reduces chatter and improves chip evacuation during deep slotting or peripheral roughing operations. It is a single-end design, meaning it is not reversible, and the non-centercutting configuration means it requires a pre-drilled entry point or ramping strategy rather than direct plunge cuts.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eM42 cobalt HSS construction for heat and wear resistance in difficult materials\u003c\/li\u003e\n\u003cli\u003eTitanium Nitride (TiN) coating extends tool life and reduces friction at the cutting edge\u003c\/li\u003e\n\u003cli\u003e4 flutes in a fine-pitch arrangement for reduced chatter during roughing passes\u003c\/li\u003e\n\u003cli\u003e3\/4 inch shank diameter matches the 3\/4 inch cutter diameter for direct collet or end mill holder fitment\u003c\/li\u003e\n\u003cli\u003eRight-hand cut and right-hand helix for use in standard spindle-direction setups\u003c\/li\u003e\n\u003cli\u003eNon-centercutting — requires pre-drilled entry or ramp-in strategy; not suited for direct plunging\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or standard tooling option for milling machines accepting a 3\/4 inch straight shank end mill in collet chucks, end mill holders, or Weldon-style holders.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by qualified machinists following standard toolroom practices. Secure the 3\/4 inch shank firmly in a properly sized collet or end mill holder and torque the retention hardware to the machine manufacturer's specification. Confirm spindle direction is set to right-hand rotation before engaging the cut. Inspect the cutting edges and TiN coating for chips or wear before each use — damaged tooling should be removed from service immediately.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.75 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 Type\u003c\/strong\u003e: Single End\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Cobalt HSS (M42)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Titanium Nitride (TiN)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePitch\u003c\/strong\u003e: Fine\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 4 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 6.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.75 inches\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: No\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\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: 84512110\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51755873009970,"sku":"84512110","price":124.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e8b2cadd95dc386f0f3e13759f1fa278.jpg?v=1788960873","url":"https:\/\/voomisupply.com\/products\/hertel-84512110-roughing-end-mill-3-4-in-4-flute-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}