{"product_id":"hertel-e699924734-ball-end-mill-0-25-in-3-flute-carbide","title":"Hertel E699924734 Ball End Mill 0.25 in 3 Flute Carbide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe HERTEL E699924734 is a solid carbide ball end mill designed for precision milling operations in ferrous and non-ferrous materials. The ball nose geometry produces contoured profiles, radii, and three-dimensional surfaces that flat end mills cannot reach. At 0.25 inches in diameter with a 0.75-inch length of cut and a 3-flute configuration, this tool balances chip clearance with cutting edge density for smooth finishes at elevated feed rates. A 30-degree right-hand helix promotes efficient chip evacuation and reduces cutting forces. Micrograin carbide substrate provides hardness and wear resistance. The TiN coating adds a layer of surface hardness and reduces tool-to-workpiece friction, extending tool life in production environments. Licensed machinists and CNC tool-and-die technicians are the primary installers and operators of this tool.\u003c\/p\u003e\u003cp\u003eThis ball end mill is suited for CNC machining centers and manual mills performing profiling, contouring, slotting, and finish passes on molds, dies, and complex part geometries. The single-end design and 0.25-inch shank diameter fit standard ER and straight-bore collet systems commonly found in vertical machining centers. The 2.5-inch overall length provides adequate reach for shallow-to-moderate cavity work without sacrificing rigidity. Applications span prototype shops, production machining, and tool-and-die operations working in steel, cast iron, aluminum, and similar materials.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBall nose geometry for 3D contouring, profiling, and radius milling\u003c\/li\u003e\n\u003cli\u003e3-flute solid micrograin carbide construction for rigidity and wear resistance\u003c\/li\u003e\n\u003cli\u003eTiN coating reduces friction and extends tool life in ferrous materials\u003c\/li\u003e\n\u003cli\u003e30-degree right-hand helix for efficient chip evacuation\u003c\/li\u003e\n\u003cli\u003eSingle-end design with 0.25-inch shank for standard collet compatibility\u003c\/li\u003e\n\u003cli\u003eRight-hand cutting direction compatible with conventional CNC machining center spindles\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as an OEM-style replacement or direct procurement option for 0.25-inch shank ball end mill applications in standard ER collet chucks and straight-bore tool holders used on CNC vertical and horizontal machining centers.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by a qualified machinist or CNC operator. Ensure the spindle is fully stopped and the machine is in a safe state before changing tooling. Seat the shank fully in the collet or tool holder and torque the collet nut to the tool holder manufacturer's specification. Confirm runout with a dial indicator before initiating a cutting program, as excessive runout accelerates wear and degrades surface finish.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMill Diameter\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength of Cut\u003c\/strong\u003e: 0.75 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnd Mill Material\u003c\/strong\u003e: Solid Carbide (Micrograin)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: TiN\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\u003eSingle or Double End\u003c\/strong\u003e: Single\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Helix\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVariable Index\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Dimensions\u003c\/strong\u003e: 3 inches L x 0.3 inches W x 0.3 inches H\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 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: E699924734\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"HERTEL","offers":[{"title":"Default Title","offer_id":51730522112306,"sku":"E699924734","price":69.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c6a2ee35dcbe89fbbc9e31f507da460c.jpg?v=1788718928","url":"https:\/\/voomisupply.com\/products\/hertel-e699924734-ball-end-mill-0-25-in-3-flute-carbide","provider":"Voomi Supply","version":"1.0","type":"link"}